| Subject | Date Asked |
|
| Root canal -reg | 11/18/2009 |
Q: I am 41 yrs old .I had one root canal treatment two and half years before. I developed cavity in ...
A: There is no limit to the number of teeth you can have treated by root canal therapy. You do need to ...
|
| Tooth Decay / Erupted Wisdon Tooth / Sinus Infection | 11/14/2009 |
Q: I'm in the process of TRYING to get over a bad sinus infection. I'm taking 500mg of Biaxin and 300mg ...
A: I cannot give you definitive advice without seeing you and your x-rays. However, there are a couple ...
|
| Worried. What would make my dentist refer me to endodontrist | 11/13/2009 |
Q: I had a painful cold/hot/sweets tooth sensitivity, so I went to dentist whom my parent recommended. ...
A: An endodontist is an expert at root canal therapy. Your dentist was right in referring you. Dentists ...
|
| Root Canal | 11/11/2009 |
Q: I have had a bit of discomfort in my bottom,front, middle tooth for the last few days so i decided ...
A: Normally what one sees in a tooth with a necrotic (dead) pulp is what we call a periapical ...
|
| Post-Root Canal Problems | 11/10/2009 |
Q: I had an exposed nerve and constant tooth pain and so my dentist recommended a root canal. I had a ...
A: Nothing more can be done. If you are not biting prematurely (you passed my biting test), then it is ...
|
| Post-Root Canal Problems | 11/9/2009 |
Q: I had an exposed nerve and constant tooth pain and so my dentist recommended a root canal. I had a ...
A: I can't give you accurate advice without knowing what your endodontist saw when he treated your ...
|
| pusing after apicectomy | 11/8/2009 |
Q: I am from india, i came here for my graduation, before coming to here i had undergone a apicectomy ...
A: No. You need to have the area examined and radiographed by a competent endodontist, and most likely ...
|
| Repeat Apicectomy | 11/6/2009 |
Q: I had a repeat Apicectomy (eights days back) on my right inscisor and Canine as I developed a cyst ...
A: I would have no way of evaluating the chance of success of your surgery. If you have had multiple ...
|
| Root Canal | 11/5/2009 |
Q: I had an accident over a month ago on one of my front teeth, i went to the dentist who did x rays ...
A: Gray or black discoloration is caused by the pulp ("nerve") dying and disintegrating inside your ...
|
| molars teeth feel uncomfortable | 10/16/2009 |
Q: i have all four of my wisdom teeth extracted 2 months ago. a month ago, my first molar feels like ...
A: Although you do not specify, if it is your lower molar, you may have had some nerve damage during ...
|
| extremely nervous about upcoming root canal | 10/14/2009 |
Q: i'll apologize in advance in case this post becomes too long. Tooth #18 (bottom left molar, right ...
A: a. I don't know why crown lengthening, which is a periodontal procedure would affect the pulp of ...
|
| Fail root canal twice in same tooth | 10/13/2009 |
Q: Lieweher I guess my question is when does the Patient know when and if a Apicoectomy is needed. ...
A: There is not really any way for you to know whether or not apical surgery is indicated unless you ...
|
| Root Canal Immediately? | 10/10/2009 |
Q: I chipped my right bottom molar 4 weeks ago and the dentist asked me to go get a deep cleaning first ...
A: I have no idea what your situation was prior to the work you had done, what the problem currently ...
|
| pain after crown | 10/7/2009 |
Q: My dentist told me that my #2 molar had 4 cracks in it and needed to be crowned so I had it done 5 ...
A: You have what is known as an irreversible pulpitis, meaning that the tissue inside the tooth (the ...
|
| Retreatment on my front tooth that has a crown. | 10/6/2009 |
Q: I have a million and one questions on the root canal I need done on my front tooth number 8. Mostly ...
A: There is a lot of information missing from your letter that I would need to even understand your ...
|
| root canal | 10/5/2009 |
Q: sorry if this sounds like i am asking for a diagnosis. 4 weeks ago i had root canal on one of my ...
A: An allergy to the crown would be very unusual, and would manifest in your gums, not as pain inside ...
|
| Bleeding in root canal | 10/4/2009 |
Q: I want to know the reasons for bleeding in root canal and their treatment as i recently experience ...
A: Bleeding in the canal is either from the periapical tissues due to overinstrumentation and/or ...
|
| tooth/root pain | 10/3/2009 |
Q: I have had several root canals and know what the pain feels like when it is necessary to have one. I ...
A: There are two reasons for needing a root canal. One is that the pulp tissue is inflamed and painful, ...
|
| abcess | 10/2/2009 |
Q: I have had a lump in my gums for about 6 months now. its about the size of 2 peas side by side ...
A: You should consider seeing an endodontist, who is a specialist in root canal therapy. If appropriate ...
|
| Never-ending roots | 10/1/2009 |
Q: My concern is regarding a root canal that was performed less than 24 hours ago by my dentist. Not ...
A: Obviously I can only guess from what you tell me. First of all, in general I would say that in my ...
|
| After Root Canal pain | 9/30/2009 |
Q: I had a root canal less than 1 month ago. 10 days after the root canal a blister developed next to ...
A: I don't know. He should have an x-ray of the "finished product" rom when he did it, and things ...
|
| front tooth partial | 9/28/2009 |
Q: I have a front tooth that had an apico and has a chronic infection in it. The teeth on either side ...
A: I can't say for sure, not having seen you, but it is possible that an endodontist could save your ...
|
| My son broke his tooth. | 9/27/2009 |
Q: Frederick, My son Anirudh who is 3.5yrs old broke his front tooth(milk tooth) while playing. We are ...
A: If you can see the root in the socket, then the tooth was not avulsed but horizontally fractured at ...
|
| chewing pain on temp crown | 9/24/2009 |
Q: Liewehr In mid July of this summer I had my upper second to last right molar prepped for a crown. ...
A: The tooth could be cracked, the crown could be "high" (if it hurts when you bite together without ...
|
| rct | 9/22/2009 |
Q: I have just seen my dentist today as i have chronic pain in my upper left molar and she said i have ...
A: I find this bizarre. Whether I do a tooth in one or more sessions depends on a number of factors, ...
|
| Tooth 'pulsing' after RCT | 9/19/2009 |
Q: 2 months ago i decided to have 2 new crowns for my front teeth for cosmetic reasons (#8 already post ...
A: First, why did the other tooth (#8) require a crown? Was it due to trauma to that tooth? If so, ...
|
| about perfurationa and use MTA | 8/21/2009 |
Q: Last wednesday i was doing root canl #30 , the patient had before ,placed one crown , last year , ...
A: I'm not sure that I understand your entire question. Were you able to successfully treat the tooth ...
|
| root canal | 8/20/2009 |
Q: Is it necessary that after a root canal is performed that a Crown is required? Had a root canal done ...
A: Depends on the tooth, its position in your mouth, the extent to which it was damaged prior to and ...
|
| root canal | 8/13/2009 |
Q: Had my first filling over a front tooth where the gum had exceeded. Looked fine. 5 days later the ...
A: Your dentist did not "kill" your tooth. The decay did that. It was almost dead already, which is why ...
|
| endodontics | 8/10/2009 |
Q: what is the basic difference between pulpectomy and pulpotomy??
A: Theoretically, a pulpectomy is supposed to remove all pulp tissue, while a pulpotomy does not. If ...
|
| Pain and root canal | 8/9/2009 |
Q: I've read many Q/As here about pain after root canal, but my question is more around when the pain ...
A: Sounds to me like your endodontist is managing things as well as he can. Some pain following root ...
|
| Can I safely delay my treatment? | 8/7/2009 |
Q: I understand that you cannot diagnose without having done an exam yourself or viewed applicable ...
A: As you say, I can't diagnose you, but it sounds like your dentist can't, either. You say several of ...
|
| matrix band placement | 8/5/2009 |
Q: CUTS AND BRUISING BELOW MY LOWER LIP RESULTED WHEN A MATRIX BAND WAS INSTALLED USING A MATRIX BAND ...
A: The matrix band retainer has a handle that sticks out with a knurled knob that the dentist must ...
|
| Pain | 7/30/2009 |
Q: Today is the 30th. I had a filling in my front tooth on the 27th. Today my top lip is slightly ...
A: If you had immediate swelling of your lip, I would say it was angioneurotic edema, which is a ...
|
| Root Canal | 7/25/2009 |
Q: I had a cavity filled 6 months ago, and now I need a root canal. What could have caused this? Is ...
A: There are a variety of reasons why this occurs, please see ...
|
| bleeding canals | 7/19/2009 |
Q: i have a case for 28 years male with exposed lower 1st molar while i am doing RCT there were ...
A: There is no way for me to tell from here. Bleeding can be from a strip perf, from pulpal remnants, ...
|
| Black tooth | 7/16/2009 |
Q: My 18month daughter fell off the sofa resulting in trauma to the front four teeth. We thought that ...
A: It varies widely, just keep an eye on it. It is generally impossible to get reliable data fro an ...
|
| calcified roots (in french) | 7/15/2009 |
Q: Bonjour, Je suis chirurgien dentiste en France (il n'y a pas d'endodontiste spécialisé en France). ...
A: Bonjour Céline, En fait, je suis tout à fait d'accord avec vos idées. Premièrement, il faut se ...
|
| extraction of number 17 molar tooth on left lower side | 7/14/2009 |
Q: i had my 17th molar tooth extrated on july the 9th,2009. i had already had a partial root canal and ...
A: You have a dry socket, and your dentist should pack it. I use iodoform gauze with a mixture of ...
|
| Root Canal Irrigant | 7/13/2009 |
Q: My dentist informed me that I need a root canal. I started to do some research and I would prefer to ...
A: You are confusing irrigants and intracanal medicaments. I would never use sodium hypochlorite myself ...
|
| jaw pain after surgery | 7/10/2009 |
Q: After having amalgam fillings for 16 years with no problems I was told by a new denist (upon routine ...
A: Sounds like you have a pulpitis, which is an inflammation in the pulp or "nerve" of a tooth. Since ...
|
| 3D CT reliability in finding fractures | 7/8/2009 |
Q: Can you please tell me if a 3D CT can reliably see fractures of a root? I had a root canal which ...
A: It is new technology, and the machines are owned primarily by folks who perform implant surgery. It ...
|
| baby teeth | 7/7/2009 |
Q: My daughter is 22 months old and the enamel has come off most of her top front four teeth. I took ...
A: It sounds like your child may have dentinogenesis imperfecta. The dentin is imperfectly formed, so ...
|
| wisdom teeth | 7/6/2009 |
Q: I had my wisdom teeth removed nearly a month ago, it seems to be healing well apart from something ...
A: It probably is bone. It is a portion of the bone that used to be around the tooth. Since it is a ...
|
| fighting off infections | 7/3/2009 |
Q: Liewehr, I'm wondering, for patients who have an infection prior to the root canal, after the ...
A: No. Antibiotics are only indicated when there are systemic signs and symptoms, e.g. fever, malaise, ...
|
| augmentin | 7/2/2009 |
Q: I had a root canal and it still hurt. My dentist said I have swollen gums and such, so it's ...
A: If your gums are swollen, it is due to an infection of some sort, and the same infection is giving ...
|
| rc | 7/1/2009 |
Q: Liewehr, When there is an infection on the bone, even after root canal, can that soreness cause ...
A: Yes. There are two sources of pain - the nerve in the tooth and the nerves in the surrounding ...
|
| RCT | 6/30/2009 |
Q: Dr. Liewehr, i had a root canal treatment done in #3 and pain caused by infection for about 8 years ...
A: It could very well be simply a sinus issue. The nerve to the tooth lies along the floor of the ...
|
| fracture and root canal teeth | 6/28/2009 |
Q: Liewehr, I was wondering, after a root canal, even if it's not done properly or cleaned out ...
A: There are two sources of pain - the nerve in the tooth and the nerves in the surrounding ...
|
| Very sick during root canal | 6/26/2009 |
Q: This evening I was supposed to get a root canal done. During the root canal some of the "irrigation" ...
A: In all probability he was using bleach. Yes, Clorox or the equivalent. This, unfortunately, is used ...
|
| root fracture | 6/19/2009 |
Q: Liewehr, I was wondering, what are the symptoms of root fracture? I went to several dentists ...
A: If the pulp is vital (alive), it usually just cracks, which we call cracked tooth syndrome. The ...
|
| TMJ vs...? | 6/18/2009 |
Q: I am 46. All four wisdom teeth were pulled in January, 2009. I am a bruxer and wear my night guard ...
A: It has nothing to do with "malfeasance". I am simply saying that isolating the cusps is a lot better ...
|
| TMJ vs...? | 6/17/2009 |
Q: I am 46. All four wisdom teeth were pulled in January, 2009. I am a bruxer and wear my night guard ...
A: Did you have this problem prior to the extraction of your wisdom teeth? If so, and you brux, you ...
|
| Root Canal Necessary? | 6/14/2009 |
Q: I had a pulpotomy today on tooth 28, and the dentist recommends a root canal. Then i saw the cost, ...
A: A pulpotomy is simply the first step in having a root canal. It is done only when time or finances ...
|
| root canal redone | 6/13/2009 |
Q: Liewehr, I was wondering if I can have your advice on something. There was a root canal issue I had ...
A: I have no idea. I don't understand why you are going to a new dentist and want to go back to the old ...
|
| your advice | 6/12/2009 |
Q: Liewehr, I was wondering when dentists work at the same office, do they usually have the same ...
A: There is no way to generalize about dentists who practice together. The owner may or may not have ...
|
| Root Planing with antibiotic treatment | 6/10/2009 |
Q: I've always had only a few places with 3 mm pockets before, but today, the hygienist said I have a ...
A: Periodontal disease is a chronic, slowly progressing disease. Nothing will happen in three months. I ...
|
| instruments | 6/9/2009 |
Q: Liewehr, do you by any chance know what a root RX instrument is? I heard it is meant to detect ...
A: A Root ZX is simply the brand name of an electronic apex locator. I use one, but you can accomplish ...
|
| Post-crown post RCT pain | 6/8/2009 |
Q: I recently had a crown (#14) replaced (that was problem-free for 15-20 years) at my dentist's ...
A: I can't help much without seeing you. I don't know what the "sensitive spot near the gumline" was, ...
|
| Infection | 5/30/2009 |
Q: To Dr. Liewehr I need your help on something I have heard so you can maybe confirm it or correct ...
A: I can't help you with your tooth without seeing you. As for the second question, bacteria always ...
|
| Pain after root canal | 5/29/2009 |
Q: I had the last appointment for my root canal on Monday - the roots were filled with gutta percha ...
A: Please don't apologize for your spelling. You got it right, and the fact that your letter is correct ...
|
| root sensitivity after RCT | 5/28/2009 |
Q: My patient ( I am a dental hygienist) came in today for a routine cleaning. # 30 had RCT over 6 ...
A: I don't know. If there were an additional, unfound canal, it should respond to cold testing. I have ...
|
| Tooth Mechanisms | 5/27/2009 |
Q: Liewehr, Well, I wanted to ask you, when a root canal is incomplete, can the tooth still be able ...
A: No medical or dental procedures can be guaranteed, because people are not cars - they respond ...
|
| Tooth Mechanisms | 5/26/2009 |
Q: Liewehr, Well, I wanted to ask you, when a root canal is incomplete, can the tooth still be able ...
A: I don't know what was done; "incomplete" can mean a variety of things. Generally speaking, even if ...
|
| Crown | 5/23/2009 |
Q: On the same molar, I had in succession: crown, root canal and filling. What is incidence of ...
A: I am unaware of a study that looked at that question, but there is a general consensus of opinion ...
|
| Infections | 5/16/2009 |
Q: I came back from the dental office this morning, and my dentist just informed me that I have an ...
A: No. There is an ongoing debate in the literature as to whether that "black spot", which we call a ...
|
| Gray Tooth | 5/15/2009 |
Q: I've had this grayish looking tooth for about 3 to 5 days... i noticed it while brushing my teeth... ...
A: Gray teeth are usually from trauma, but you don't mention this, and from the time the tooth erupted ...
|
| Pain! | 5/12/2009 |
Q: its much appreciate! I went to my dentist a few week ago, and she repaired a filling in the very ...
A: It certainly could be an abscess, but I can't tell you the source of the problem without seeing you. ...
|
| amoxicillin | 5/11/2009 |
Q: I want to tell you about my situation regarding antibiotics and what I should do, in regards to ...
A: You shouldn't be taking antibiotics anyway. Unless you face was all swollen up or you were running a ...
|
| tooth pain | 5/10/2009 |
Q: Spindel, I was wondering when it comes to a tooth which has received root canal therapy, and if ...
A: Yes, it could be cracked, and you might experience the symptoms you describe. Cracked teeth, and ...
|
| normal cost of pulp testing a tooth | 5/5/2009 |
Q: Could you give me the normal cost for having a tooth "pulp tested" for possible root canal ...
A: If you think that there is some sort of test that can determine the health of the pulp in your ...
|
| is a crown really required for my front 2 teeth | 5/2/2009 |
Q: Liewehr. I had to have a root canal done on 1 top front tooth 6 months back. The dentist suggested i ...
A: There are two reasons you would need a crown on an anterior tooth. One would be if there is very ...
|
| Chipped crown. | 5/1/2009 |
Q: Liewehr, I've had two crowns on my two front teeth for appoximately 8 years, in the middle of the ...
A: The crowns will have to be cut off, the preparations on the teeth possibly redefined, and new ...
|
| root canal | 4/30/2009 |
Q: About a week ago I was suffering from sudden and severe tooth pain. It was on the top right side of ...
A: Sounds like he did the wrong tooth. If you have a toothache, it is because the pulp of a tooth is ...
|
| Hospital treatment vs office for a 4 yr old | 4/26/2009 |
Q: My 4 yr old needs 3 pulpotomies and 4 smaller cavities to be filled. We have been advised by 3 ...
A: It depends totally on your child's ability to cooperate, and your dentist's management skills. I ...
|
| root canal if we might be pregnant | 4/20/2009 |
Q: We are not even sure at this point if we are pregnant, and we won't be able to tell by testing until ...
A: Well, like everything else Mom does during pregnancy, there is always a chance that it will affect ...
|
| Misdirected post | 4/19/2009 |
Q: I did my root canal treatment and fixed the crown on th premolar (tooth 25) but after two days the ...
A: Possibly. I would remove the post and fill the defect with MTA and see if you were OK. I really need ...
|
| antibiotics and RCT on baby teeth | 4/14/2009 |
Q: Should the antibiotics prescribed by the pediatric dentist be taken fully to allow the infection to ...
A: I can't accurately answer your question without seeing your child. I can tell you that antibiotics ...
|
| post extraction cheek and eye pain | 4/13/2009 |
Q: This is a followup question - the dentist that answered is on holiday. He misread the extraction - ...
A: It wouldn't be ethical for me to comment on your condition without seeing you - you had better see ...
|
| Caps and root canal | 4/11/2009 |
Q: Several weeks ago I went to the dentist with 3 chipped, but painless, teeth to see if I should get ...
A: I can't tell you a lot, because I can't see you. If the temp cracks repeatedly, it is because it ...
|
| Wisdom teeth extraction - healing | 4/9/2009 |
Q: On the 31st of last month I had my 2 lower wisdom teeth removed at the hospital. Dissolvable stiches ...
A: If you are concerned, you should let your dentist have a look. I usually remove sutures in a week's ...
|
| Needing a second opinion- nothing's working! | 4/8/2009 |
Q: After a general cleaning back in mid-February I was told I would need two fillings in the back ...
A: We get LOTS of business due to "white fillings". The phenomenon you describe is well known, but ...
|
| core build up denied on crown | 4/5/2009 |
Q: I have a deep groove at gum line on tooth 6, incisor, from wear and some gum receding (over ...
A: It is extremely difficult for me to give you specific information without seeing you. However, if ...
|
| Crowns | 4/4/2009 |
Q: I had a root canal and used up most of my max amount of dental insurance for the year. I have ...
A: Most teeth don't need posts; dentists place them for a variety of reasons, all of which are wrong. ...
|
| continuous, increasing pain, even following pseudo-root-canal | 4/3/2009 |
Q: I'm not certain of the tooth number, but it is the fourth tooth from the front on the lower left. ...
A: I really couldn't say without seeing you, Lisa, but probably not. It is far more likely that the ...
|
| endodontics (root canal therapy) | 3/16/2009 |
Q: actually even i am in your field but i am not yet a full fledged dentist!! presently i am posted in ...
A: The indications/contraindications for performing endodontic therapy on third molars is no different ...
|
| tongue numbness after lower molar extraction | 3/14/2009 |
Q: I had 2 of my lower wisdom teeth removed about 1 month ago. My speech is almost back to normal and I ...
A: The numbness is probably caused by the anesthetic injection. The needle undoubtedly traumatized the ...
|
| Lateral Incisor Root Canal | 3/10/2009 |
Q: I need a root canal on my lateral incisor, I caught it in the early stages and went to 2 doctors for ...
A: "Extracting the pulp" implies a pulpotomy, and that is insufficient. Proper endodontic therapy, ...
|
| Pain after root canal | 2/24/2009 |
Q: My tooth #19 has had a long, sad history. One of the many sad parts was that three endodontists and ...
A: I can't tell you much without seeing you. You may need yet another dentist. Your endodontist should ...
|
| Crown for a cracked tooth | 2/21/2009 |
Q: This morning I went in for a routine cleaning and the dentist found a crack in one of my molars. It ...
A: I couldn't tell you without seeing you. Many teeth appear to have crack or craze lines but are ...
|
| Cavity filling or RCT? | 2/20/2009 |
Q: I was having tooth pain with cold and sweet; it felt like the cold/sweet was shooting directly up ...
A: Sounds like you need another dentist. There are a variety of reasons why you could be experiencing ...
|
| apology about the last email | 2/15/2009 |
Q: liewehr i sent you an e-mail about a tooth that i thought needed a pulpotemy..i have two great ...
A: I'm not sure I follow you at all, Ellen. If you have a tooth that is sensitive to sweets, it is not ...
|
| Root canal gone bad | 2/13/2009 |
Q: HELP! I'm so upset. About 5 years ago I while a dentist was doing a root canal the tip of the ...
A: The file probably is no problem. Obviously if you have had a root canal already the tooth, or more ...
|
| potential injury??? | 2/12/2009 |
Q: I recently underwent a failed wisdom tooth removal. While they were removing it i don't know if they ...
A: Most likely you just have some trismus. The only way this is going to get better is by doing ...
|
| Blisters in mouth following dental proceedure | 2/10/2009 |
Q: Several years ago I had dental work done, and the day after I had many painful, small blisters in ...
A: The two possibilities that come to mind are apthous stomatitis and herpetic stomatitis. Apthous ...
|
| dark area on x-ray | 2/7/2009 |
Q: I recently had my routine full x-ray. My teeth are fine but my dentist noticed a dark area below ...
A: Don't worry about it. It is not an endodontic lesion, because 1) pulp testing (what you were doing ...
|
| Root Canal and pregnancy | 2/3/2009 |
Q: .. I just found out that I am expecting today 2/2/09, before I knew I was expecting I had some ...
A: There are really no risks. Due to beam collimation and so forth that are part of the x-ray machines, ...
|
| disinfection before placing crown | 1/30/2009 |
Q: 2 months after root canal I went to my dentist and had crown preparation done. I am concerned now as ...
A: I would say yes, because the research isn't there yet. I did some research on it in our lab when I ...
|
| disinfection before placing crown | 1/29/2009 |
Q: 2 months after root canal I went to my dentist and had crown preparation done. I am concerned now as ...
A: There is no need for a disinfectant at all, as I said previously. Any necessary cleansing of the ...
|
| Root canal vs extraction | 1/24/2009 |
Q: My top back tooth has broken on the inside. It is broken from just above an old, large filling and ...
A: In the hands of a good endodontist, root canal therapy should be painless; you will think you are ...
|
| sodium hypochlorite | 1/21/2009 |
Q: In one of your answers about a patient who was burned on the lip at her dentist's office by the use ...
A: The citation is: Liewehr FR. Primum non nocere. Pract Proced Aesthet Dent, 2006, 18(7) 416-7. I ...
|
| opinion on having teeth pulled | 1/19/2009 |
Q: I recently went to the dentist and had xrays and everything done. I was told that I needed to have 2 ...
A: You didn't tell me which teeth you are referring to, whether they are next to each other or in ...
|
| tooth extraction pain | 1/18/2009 |
Q: My husband had a molar removed in Nov.2008. He had pain after the surgery, so much so that he ...
A: I can't tell what the problem is without seeing your husband, obviously. I don't know whether the ...
|
| Wisdom teeth regrowing? | 1/14/2009 |
Q: I am just a bit over 24 years old. My wisdom teeth were severely impacted when I was just over 15, ...
A: I can't tell you much without seeing you, Liana. Since your teeth were removed in pieces, you may ...
|
| Incisor Removal | 1/10/2009 |
Q: I'm planning on doing some cosmetic work on my upper teeth: 1. replace caps on two front teeth ...
A: I cannot recommend any course of treatment to you without seeing you. I will tell you in general, ...
|
| referred pain | 1/6/2009 |
Q: My endodontist advised me that he thinks that my molar tooth is the cause of pain & sensitivity ...
A: I couldn't tell you for certain without seeing you, of course. Referred pain means that the site and ...
|
| Wisdom teeth woes | 12/29/2008 |
Q: I'm 22 and growing my wisdom teeth. They're causing a lot of misery for me and have been for months. ...
A: Many dentists exaggerate the problems associated with wisdom teeth. There is no way I can tell you ...
|
| crown buildup after a crown? | 12/24/2008 |
Q: I'm concerned that the dentist I'm seeing has recommended crown buildups for teeth that I already ...
A: If what you say is correct, you are absolutely correct. Unless the cervical areas are really very ...
|
| Dentistry | 12/21/2008 |
Q: Is the UV brushhead sanitizer necessary if one uses a Phillips Sonicare toothbrush?
A: Two issues: 1) Do you currently sterilize your toothbrush after every use? Do you ever sterilize ...
|
| cheek biting with temporary crown | 12/19/2008 |
Q: I just had prep for crown on bottom, last molar on left 5 days ago and have a temporary crown. I am ...
A: Your temporary crown is misshaped. Since the temp has nothing to do with the final that comes from ...
|
| dental socket packing | 12/17/2008 |
Q: I had two wisdom teeth taken out about 1 week ago. I went in for my 1 week check and the hygentist ...
A: I don't know what is going on here. The only reason to "pack your socket" would be if you were in ...
|
| bad teeth | 12/16/2008 |
Q: My teeth are in horrible condition mainly because I have been addicted to opiates for years I think ...
A: It is good that you have decided to have this work done. You can have all the teeth taken out at ...
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| Apico | 12/7/2008 |
Q: I had a Apico done on tooth #30 in the end of Sept and just the past few days the corner of my mouth ...
A: You may have had some nerve damage in conjunction with the surgery. This is not uncommon. A ...
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| broken tooth after root canal | 12/3/2008 |
Q: i know this may be a bit specific, which is what you said not to ask but.... im living away from ...
A: Your question is a good example of why I cannot give you specific information. I have no idea which ...
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| Re root treated tooth still hurts | 11/28/2008 |
Q: My front tooth was root treated by expert a year ago, it was sensitive for 6 months then started to ...
A: I can't tell you what is wrong with your tooth without seeing you. The final fill will not help if ...
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| root canal | 11/25/2008 |
Q: About a year ago I had a root canal done, and I still have sensitivity to that tooth. A new dentist ...
A: There is definitely something wrong. After three weeks it should be fine. Taking a narcotic like ...
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| root canal | 11/16/2008 |
Q: Can a cat scan show a cracked tooth - (upper molar that had a root canal 2 years ago). The root ...
A: Possibly, if the angulation and a lot of other factors were optimum. However, CT is very, very ...
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| Root canal vs. implant | 11/15/2008 |
Q: What is the difference between root canal and tooth implant? Are they expensive?
A: Endodontic therapy, commonly called a "root canal", involves removing damaged or dead tissue from ...
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| Lymph node/ pimple on gum | 11/10/2008 |
Q: PRIORITY:HIGH Dear DR Liewhr: I had a filling/cavity done 11/5/08 on the lower anterior teeth ...
A: I can't tell you much without seeing you. It is unlikely that you would have swollen neck nodes from ...
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| Painful swelling after a Root Canal | 11/9/2008 |
Q: My dentist is working on a root canal, He could not finish because I started to bleed. He asked me ...
A: What you experienced, Vicky, was a sodium hypochlorite accident. This happens when the bleach goes ...
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| gold crow- chemical taste | 11/7/2008 |
Q: I had a gold crown made 6 years ago. Since a week ago, there's a chemical taste emanating from the ...
A: I have no idea what is producing that chemical taste. If there is an opening, and the crown is ...
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| white Fillings to replace every year | 11/6/2008 |
Q: I am a 26yo female with healthy gums and teeth in general. 5 years ago my dentist discovered 4 ...
A: The problem is not with the material, because either amalgam or composite can be used ...
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| New Fillings pressure pain. | 11/4/2008 |
Q: I am in the process of getting new fillings. Never been one to take good care of my teeth. I had a ...
A: I cannot give you accurate information about your particular tooth or teeth without examining you. ...
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| Pain after permanent crown and root canal | 10/31/2008 |
Q: I had a root canal done about 2 months ago. Prior to the root canal, I had no pain with the tooth ...
A: Sometimes patients have discomfort following root canal therapy, but it should be gone in a week or ...
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| broken tooth | 10/29/2008 |
Q: i am a 5 weeks pregnant and i broke my tooth yesterday, i have an appointment with the dentist today ...
A: Local anesthesia is no problem; a couple carpules or less is the most you need anyway. I have no ...
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| Is root canal necessary | 10/28/2008 |
Q: I had my first filling done about 3 months ago and for about 2 months it was fine. Then I started ...
A: It sounds like you have what we call an irreversible pulpitis, which is an inflammation of the pulp, ...
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| Crown over calcified root. | 10/20/2008 |
Q: I had a porcelain crown on my #12 back in 2005. The dentist did not do any root preparation on the ...
A: Most crowns are placed without endodontic therapy beforehand. Crown fractures occur when the ...
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| pain in adjacent teeth following root canal re-treatment | 10/17/2008 |
Q: Liewehr, Due to continual pain following root canals of teeth #'s 8 & 9 in May, the teeth were ...
A: I really couldn't tell you without seeing you. If you had the teeth treated because of trauma, that ...
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| Post root canal therapy | 10/14/2008 |
Q: Good day doctor, I had a root canal done two weeks ago and I am going for the second part (I did ...
A: Posterior teeth that are endodontically treated have double the chance of success if they are ...
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| root canal treatment | 10/11/2008 |
Q: I visited my dental surgeon for a regular implant control. She took x-rays. She told me the implants ...
A: You have severe periodontal disease, which has caused you to lose muchof the bone support of your ...
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| OTC temporary filling | 10/5/2008 |
Q: I lost a filling in a molar a couple of months ago, then chipped off enough of that tooth that when ...
A: It might. If you are having spontaneous pain and lingering aching, the pulp, the tissue inside your ...
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| tissue growth in tooth | 10/4/2008 |
Q: I had a tooth prepped for a root canal. A hole was drilled through the metal crown and tooth. It has ...
A: I have no idea what is sticking out of the access opening in your tooth. Generally when the tooth is ...
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| Re-infection after root canal + crown | 9/28/2008 |
Q: Nine years ago, my endodontist did a root canal on an upper molar and then a crown was subsequently ...
A: It is an infection of some kind. Could be endodontic, could be periodontal. I would have to examine ...
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| Severe gum ache travels?! | 9/22/2008 |
Q: I have strong gum ache which starts in the lower right gum then moves to the upper gum then to the ...
A: I don't know about the "gum ache" part, but it sound like your occlusion is off and you are grinding ...
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| CAN EAR INFECTION RESULT FROM DENTAL ABCESS? | 9/21/2008 |
Q: Dr. Liewehr, In early July I began to have very chronic ear problems. Symptoms as follows: a) ...
A: Your dentist is right; a maxillary central incisor is not anatomically near either your sinuses or ...
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| infected molar | 9/20/2008 |
Q: I was wondering if a drug called Vibramycin (Doxycycline) could be used to fight an infected molar. ...
A: No. Antibiotics alone cannot help. They only work in the blood stream, and an infected molar has a ...
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| will my tooth die. | 9/18/2008 |
Q: Last night I was picking my daughter up when she decided to throw a fit and started throwing her ...
A: The tooth does not "die". There is tissue inside of it which, if deprived of its blood supply, can ...
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| Abcessed tooth on my 8 years old child | 9/13/2008 |
Q: My 8 years old child had an abscessed tooth which had been treated many times in the past (including ...
A: I can't really answer your question, because I don't even know what tooth you are talking about, but ...
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| Absess tooth | 9/11/2008 |
Q: I went to the dentist and i was told i have an abscessed tooth. they gave me amoxicillian and when ...
A: First, you must always take the antibiotics until they are finished. Otherwise you selectively kill ...
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| Swelling after root canal | 9/9/2008 |
Q: Yesterday I had a root canal performed, and while it was not painful during the procedure, pain and ...
A: It takes time to heal. You have swelling due to a combination of the edema produced by the infection ...
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| root canal | 9/8/2008 |
Q: I want, let me rephrase, I will be put to sleep to have my root canal done. Where can I go?
A: Good luck. General anesthesia would rarely be indicated for this procedure, so few if any ...
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| Root Canal | 9/2/2008 |
Q: I had root canal 6 weeks ago on a tooth which has a veneer on it - upper left incisor. The tooth ...
A: You probably have serious decay under your veneer, which may have resulted in your needing the root ...
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| burning mouth | 8/27/2008 |
Q: if i put top dentur in it burns under the roof of the mouth only and also feels like flu symptoms ...
A: With Candida, you often have an erosive lesion, so the gingiva on your palate would be red. So, it ...
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| tooth filling | 8/20/2008 |
Q: Today I got a big cavity in between my molars filled. One of the tools my dentist used to separate ...
A: Getting the "contact" correct is sometimes difficult. It wasn't bad with amalgam, but if you have ...
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| Root Canal through my bridge | 8/18/2008 |
Q: I need a root canal on a tooth that has a bridge over it. I guess what I am trying to find out is if ...
A: Yes, we do it all the time. Of course there will be a hole in the bridge, but that can be patched ...
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| Pulp Stone | 8/16/2008 |
Q: One of my front teeth is slightly grey. I have been to many dentists and they couldn't find out why. ...
A: You probably had trauma at some time, which caused some bleeding in your tooth. When that happens, ...
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| novacaine numbness | 8/12/2008 |
Q: I had dental work done for temp crown. I received novocaine in the bottom right of my mouth. I ...
A: You most likely suffered a little trauma to the nerve that your dentist was anesthetizing. This is ...
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| Emergency filling, now need root canal treatment. | 8/11/2008 |
Q: I recently had a very bad cavity in my upper molar and my mistake i didnt see the dentist as soon as ...
A: Since I do not know in what condidion your tooth was, nor do I know what exactly your dentist did, I ...
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| root canal | 8/10/2008 |
Q: i had the 1st part of my root canal 9 days ago. the 1st couple of days i had no pain but then i ...
A: I don't know what was done in the "1st part" of your treatment, so I cannot answer with much ...
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| infection after root canal | 8/8/2008 |
Q: Lewder I had a root canal on a molar in 1984. Decay has since got in and I needed a re root. I ...
A: No. 1) This is not my name. 2) Periodontists do not do endodontic therapy. 3) You are experiencing a ...
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| Pain in the Gum from where the Wisdom tooth was extracted | 8/7/2008 |
Q: I had recently got 4 of my wisdom tooth removed.. Now, after 3 weeks,when i drink water, i feel pain ...
A: Could be a dry socket, which is where you lose the blood clot and sensitive bone is exposed. 3 weeks ...
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| wisdom teeth -vertical impaction | 7/18/2008 |
Q: , I am 36 years-old and all 4 wisdom teeth are vertically impacted ( all 4 broke through the gums a ...
A: No. There is a common old wives tale I hear from patients that is evidently spread by not so ...
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| Recent Permanent Crown | 7/16/2008 |
Q: I had major pain in tooth #19 so my doctor recommended a root canal. So I got that from an ...
A: Sounds like you are a pretty good dentist yourself, Brian. If you push on the tooth with the crown, ...
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| primary teeth abscess | 7/15/2008 |
Q: Dr. Liewehr My 2 yr old experienced trauma to his two front primary teeth in feb. they both slightly ...
A: A pulpectomy and root canal treatment, filling the tooth with an absorbable mixture of zinc oxide ...
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| root canal | 7/13/2008 |
Q: Dr. Liewehr, last Thursday my daughter-in-law had an upper molar root canal done and during the ...
A: In many people, their maxillary sinuses surround the ends of some of the roots of their teeth, which ...
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| dentistry abroad | 7/8/2008 |
Q: I have been afflicted by a cosmetic dental problem ( a misplaced tooth) and also periodontal ...
A: I don't know anything about it first-hand, Luigi. I only know what I read on the Internet (same as ...
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| extra teeth | 7/5/2008 |
Q: I don't know if this is normal, but I have two extra lateral incisors on my top jaw. All of my ...
A: A normal complement of teeth is 32, so if your wisdom teeth (4) are gone, that would leave 28, plus ...
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| Root Canal Done | 7/3/2008 |
Q: Dr Dr. Frederick, Thanks first for being here for us! It means a lot! I have had a successful root ...
A: Dr. Adel, I don't understand what you mean when you say you don't want to crown the tooth ...
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| recommendation | 7/2/2008 |
Q: I'm self employed, a sole proprietor and I'm looking for quality dental insurance for my two ...
A: I really don't know. We have problems with them all over some issues. Dental insurance in your case ...
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| dentistry abroad | 6/29/2008 |
Q: I have been afflicted by a cosmetic dental problem ( a misplaced tooth) and also periodontal ...
A: I would be very wary ideed. It is impossible for a patient, even if he is a dentist himself, to know ...
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| mandibular turus | 6/23/2008 |
Q: I just went to the dentist to ask about this hard, painless lump I just found on the right side of ...
A: A torus is a bony growth. At your age it would not be growing, but you may never have noticed it. ...
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| Nerve injury | 6/15/2008 |
Q: I sustained an irreversible nerve injury from the numbing shot(s) given to me when I underwent the ...
A: That would be extremely unlikely, as the nerve is quite large and the needle quite small. You may ...
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| Staph,Steroids and tooth problems | 6/9/2008 |
Q: I have had an on going issue with Staph infections on the skin and have been told I am a staph ...
A: Staph infections on the skin have nothing to do with dental disease. In fact, although dental caries ...
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| Root Canal Failure | 6/5/2008 |
Q: Can the placement of a temporary crown that is too high relative to the teeth around it cause a ...
A: It is possible. The fault is more likely with the internal restoration (a post in the canal for ...
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| left facial numbness | 5/24/2008 |
Q: almost one year ago I had an endo on the last molar on the bottom left. About one month later I ...
A: You need to be examined by an endodontist. I can't tell you much without seeing you. If the AH26 is ...
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| abcess and root canal problems | 5/21/2008 |
Q: I'm on SSI and Medicaid in New York State and I need rootcanals on number 7,10, possibly 8, and ...
A: You are probably not going to like the answer to your question. Medicaid is a case of the government ...
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| Tooth pain but no cavity nor discolored. | 5/17/2008 |
Q: Dr Liewehr, My concern is whether I need a root canal. My tooth is neither sensitive to ...
A: It is impossible for me to diagnose your problem without seeing you. You did not even tell me which ...
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| Rooth Canal vs Bridge | 5/14/2008 |
Q: Can you please advise. 1. My Anterior #7 was crown procelin and within one week the crown broke my ...
A: Depending how the tooth broke, you may be able to have a crown-lengthening procedure plus endodontic ...
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| Tooth regrowth | 5/4/2008 |
Q: My tooth has recently become so decayed that it has broken twice, and now has left somewhat of a ...
A: Bone is constantly repairing itself, just like your skin and many other tissues in your body. So, ...
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| crowns vs veneers | 4/29/2008 |
Q: I have two front teeth that were broken many years ago. I have had them bonded many times but the ...
A: Probably not. Veneers are not meant to replace tooth structure, they are to cover what is left. They ...
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| mouth guards for bruxism | 4/28/2008 |
Q: I have been wearing a mouth guard because of clenching my teeth but still am having problems with ...
A: If your pulps are dying, I cannot believe it is due to bruxism. Sure, grinding your teeth can cause ...
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| Chipped tooth | 4/27/2008 |
Q: Today while I was flossing the floss got stuck on one of my bottom teeth in the middle of the row, ...
A: The chip may be nothing, or it may indicate serious decay beneath. No way I could possibly tell ...
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| Lumineers | 4/26/2008 |
Q: Will the decalcificated portions of the teeth recrystalize ( heal ) under lumineers? Can lumineers ...
A: This is not really my field. No, they will not recalcify. The bonding agent will prevent anything ...
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| Teeth | 4/17/2008 |
Q: Just yesterday I got hit in tooth with a skateboard and my tooth fell out. now my front tooth, which ...
A: It will not move back in place on its own; it will heal right where it is and you will have to pay ...
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| Do I need crown after root canal? | 4/4/2008 |
Q: I noticed enlarging hole on my 4 upper tooth. It didn't hurt but went to check it up with my ...
A: The tooth is already weak from the decay, and will be even weaker after the root canal therapy, so ...
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| root canal | 4/2/2008 |
Q: should my wife's dentist told us that root canal was a possibility before she drilled her tooth ...
A: A dentist cannot know in advance how "deep" the cavity is, or how your tooth is going to react to ...
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| Pitt and fissure sealants applied over stains | 3/25/2008 |
Q: Liewehr, I have black lines in the grooves of a couple my back teeth which are very stubborn to ...
A: Your dentist was right. These are insignificant areas of stain. Removing them would involve removing ...
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| Root Canal through a metal crown | 3/21/2008 |
Q: I had a metal crown placed on molar. 4 weeks after the crown the tooth starting hurting so a root ...
A: Tough question to answer. It technically is a core, because it does replace the tooth structure that ...
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| Pulp Capping | 3/18/2008 |
Q: I'm 36 years old and I never had any problems with my teeth until last summer when a dentist I went ...
A: You need to see an endodontist and have the treatment you need. If you can smell and taste the ...
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| pain | 3/13/2008 |
Q: name's brandi, just had wisdoms pulled last week. 1 week exactly, in fact. well, i had 6 pulled, two ...
A: Your wisdom teeth are the last teeth in each arch, and there are four. if you had six teeth removed, ...
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| root canal | 3/12/2008 |
Q: Bonjour, Doctor I had a root canal three weeks ago, last tooth upper left side. Today i had a cavity ...
A: Aucune idee. The only thing I can think of is that your dentist may have used a black filling ...
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| sore throat | 3/11/2008 |
Q: good morning... Yesterday I had a cavity filled. I had my mouth open quite a long time. I also ...
A: It could be, Juli. Grinding/clenching is a complicated problem. Try getting a football-type ...
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| Is it customary for a dentist to show a patient their ex-rays? | 3/10/2008 |
Q: Is it customary for a dentist to show the patient their ex-rays? My family just started seeing a new ...
A: Personally I show my patients what I see, and educate them a bit in the process as to what is going ...
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| Root Canal Therapy, But With Which Office? | 3/8/2008 |
Q: After not visiting the dentist for 4 years (because of traumatizing wisdom teeth extraction), I ...
A: Interesting ethical question. What you want is the best treatment at the best price. Those things ...
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| Help please | 3/5/2008 |
Q: I have no decay on my front 11 tooth, about 4 months ago I purchased a Philips Sonicare toothbrush, ...
A: I doubt that there was any connection between the brush and the onset of the problem. You most ...
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| Does tartar harm the teeth or only gums? | 3/2/2008 |
Q: Sir, I have a kinda stupid question about tartar. Once tartar is formed and plaque accumulates ...
A: Yes it will. The calculus, or "tartar", only serves as a scaffold that helps the bacteria adhere to ...
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| Filling vs. Root Canal | 2/27/2008 |
Q: At what point does a patient decide on getting a root canal versus a deep filling? Or can a dentist ...
A: There is no such option. A "deep filling" probably is a term the dentist uses to try to explain the ...
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| root canal on crowned tooth | 2/16/2008 |
Q: can a crown be canalled without destroying the crown? thank you!
A: Yes, we simply make a hole in the biting surface of the crown. With porcelain crowns there is always ...
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| Dead Teeth | 2/15/2008 |
Q: The girl I have been dating has teeth which her dentist said are slowly dieing due to trauma caused ...
A: Without seeing your girlfriend, I cannot speak with authority, but I can tell you that I have never ...
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| Root Canal Treatment | 2/14/2008 |
Q: I have had my root canal treatment recently,would like to know that, what is the time frame within ...
A: There are two issues of concern here. First is the question of leakage. If you had a temporary ...
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| Root Canal Failure - Redo again | 2/12/2008 |
Q: 11 years ago I had root canal on my back molar and last summer I found out (very painfully) that the ...
A: If you do not heal following nonsurgical root canal therapy, which consists of cleaning the inside ...
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| Sedation Dentistry | 2/11/2008 |
Q: My 1st sedation dentist gave me 5 pills and nitrous oxide and it was like coming in and out of ...
A: I don't think you are a good candidate for "sedation dentistry". You could probably benefit from IV ...
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| failed root canal | 2/10/2008 |
Q: My upper molar (tooth 3) was treated three times over the past two years. It again failed with the ...
A: They say that one definition of insanity is to repeat the same procedure and expect a different ...
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| failed root canal | 2/9/2008 |
Q: My upper molar (tooth 3) was treated three times over the past two years. It again failed with the ...
A: That is far too complicated a question to answer in an e-mail. Suffice it to say that endodontic ...
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| Crown and Teeth Cleaning | 2/7/2008 |
Q: I have a multi-part question. Do I need a tooth scaling or cleaning before my two crowns are ...
A: It is impossible for me to give you a definitive answer without seeing you, Jamie, so I have to rely ...
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| failed root canal - 3 times ugh | 2/4/2008 |
Q: I had a root canal on my upper molar in 2006 performed by a well established, well regarded board ...
A: Yes it is. An oral surgeon could tell you whether or not you are a candidate for an implant based on ...
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| failed root canal - 3 times ugh | 2/3/2008 |
Q: I had a root canal on my upper molar in 2006 performed by a well established, well regarded board ...
A: You are right; I cannot give you very accurate information without seeing you and your radiographs. ...
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| Extracting a tooth | 2/2/2008 |
Q: I went to my dentist the other day needing two teeth pulled. One was beyond root canal repair and ...
A: No, that's silly. The government is certainly into your business, but not yet into your mouth. Of ...
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| Black Spot | 2/1/2008 |
Q: My grandson is one year old and he has a black spot on his gum. My daughter has been to one doctor ...
A: Not seeing your grandson it is obviously impossible for me to diagnose his problem. I certainly ...
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| post in a rct tooth | 1/26/2008 |
Q: is it okay for the endodontist to create the post space immediately after the rct is ...
A: The literature is virtually unanimous that creating post space at the time of the endodontic therapy ...
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| filling / root canal / pain | 1/9/2008 |
Q: About 45 days ago I had a filling placed in a lower left molar. The dentist told me that the filling ...
A: I'm sorry you are having this pain. You have a pulpitis, which is an inflammation of the pulp, or ...
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| recurring pain in #3 | 12/29/2007 |
Q: I recently (3-4 months ago) had a root canal and cap done on #3. At first it went beautifully. For a ...
A: Could be a fractured root. The scaling may have exposed the fracture (which was previously below the ...
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| Post-Root Canal retreatment pain | 12/26/2007 |
Q: I had a root canal retreatment for a failed root canal on a molar on my right side over two weeks ...
A: I have no idea what your dentist is talking about. If you had the tooth retreated, you should not ...
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| root canal | 12/17/2007 |
Q: I'm scheduled to have a root canal done tomorrow moring, so you may not get this before that. Here ...
A: This is a very difficult question to deal with, because I can't see you or examine you. So all I can ...
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| Root Canal | 12/5/2007 |
Q: The tooth next to my top front teeth on the rh side (#12?) had been feeling weird for a few months. ...
A: I couldn't possibly give you an answer without seeing you and your radiographs. I can say ...
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| replaced filling/root canal | 12/3/2007 |
Q: A couple of months ago my dentist told me a filling in my molar was too old and needed replacing. He ...
A: You probably had what is called an irreversible pulpitis. The pulp, or "nerve" of your tooth became ...
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| tooth pain | 11/28/2007 |
Q: I am having gum/tooth pain on the left side of my face. It isn't unbearable, it is mostly in ...
A: No there isn't. You should at least have an examination and find out why you have this pain. Dental ...
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| lights | 11/25/2007 |
Q: please recommend a light for transillumination of teeth in general dentistry and ...
A: I'm glad you asked that question. Transillumination is a vital part of testing, and one that I use ...
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| root canal on crown | 11/24/2007 |
Q: I've had a crown put on that became sensitive to hot/cold and air pressure very soon after it was ...
A: Generally this is a pulpitis (inflammation of the pulp or "nerve" of the tooth) caused by the great ...
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| Failed Root Canal? | 11/22/2007 |
Q: I had a root canal done two years ago. Last set of x-rays showed a shadow at one of the roots (#30). ...
A: First, I am confused as to why you saw a periodontist, who is a gum specialist. Either he is ...
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| Root canal and sinus infections | 11/21/2007 |
Q: I had a toothache and a sinus infection at about the same time back in February of 2007. I treated ...
A: If a tooth is pneumatized, which means that the sinus (which is just a cavity in your bone) has ...
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| infection after extraction?? | 11/20/2007 |
Q: i had one of my lower back teeth removed yesterday morning. i did exactly as the dentist said..no ...
A: What you are seeing is the blood clot that is filling in the "hole" where the tooth was. That is ...
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| dental x-rays taken with older equipment (non-digital) | 11/7/2007 |
Q: What year or when did it first become safe for a patient to not wear a lead apron. In other words ...
A: Nothing has changed for many years. Long cone machines with collimation and so forth have been used ...
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| Suspected dying front tooth although x-ray seems fine. | 11/6/2007 |
Q: Liewehr, I have a tricky situation here. I had impact trauma on my front teeth while rollerblading ...
A: Well, "It's Me", I must say, nobody has ever sent photos and radiographs; a good idea. ...
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| abscess root canal pain | 11/3/2007 |
Q: I was diagnosed with an abscess root canal today. If I look in the mirror, it is the 5th tooth ...
A: If you actually have an abscess, and it is not draining, you will have pain until either it drains ...
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| hole in my tooth | 11/2/2007 |
Q: I was eating a sucker on Halloween and I think I pulled out part of my filling, because now there is ...
A: No. Caries is a slow process. Nothing serious will happen to your tooth if you wait a week to be ...
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| teeth numbness | 10/25/2007 |
Q: Recently, during a football game, I was kicked in the left eye. The surrounding area went black and ...
A: First, you need to see a dentist. I can't tell you much without seeing you. Second, it is common for ...
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| deep filling | 10/24/2007 |
Q: Around two months I received a deep filling in tooth 20. The Dr. said that I was lucky because it ...
A: Your pulp, or "nerve" is irreversibly inflamed. The pain episodes may come and go, and you may wind ...
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| New Crown | 10/23/2007 |
Q: I just had a new crown put on today, but my bite is off. When I chew, it seems my crown is higher ...
A: It should have been properly fitted before it was cemented, but yes, it can still be adjusted. It ...
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| Root Canal Pain- during & after | 10/21/2007 |
Q: Just a little back story, I had my son July 2007, and I did receive dental care during, but I still ...
A: People do not develop a tolerance to local anesthetic. It is possible that you have some anatomical ...
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| toothache after filling | 10/17/2007 |
Q: Last week I had a drink of room temperature water in the morning and my tooth gave me a shock of ...
A: I can't tell you much without seeing you. A dentist only "drills" as deeply as necessary to remove ...
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| Tooth Socket Ridge | 10/4/2007 |
Q: Liewehr, I had all of my wisdom tooth removed about 5 wks ago due to a decayed tooth on number 31. ...
A: I think you are right! When I used to extract wisdom teeth, I always made sure that I fixed this ...
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| file broke during root canal and was left in my tooth | 10/3/2007 |
Q: I'm a 26 yr. old female. I had a root canal done over a year ago in one of my front teeth. The file ...
A: The goal of endodontic therapy is to remove the diseased or necrotic (dead) pulp (nerve) from your ...
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| Root Canals | 10/1/2007 |
Q: Recently, we visited a dentist in our new area in our network. (Jokingly my husband's work calls the ...
A: You can always get a second opinion, and it is a good idea. Bear in mind that treatment plans can be ...
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| Is it a failed root canal retreatment? | 9/25/2007 |
Q: A few weeks ago, I noticed a lump on my lower molar ( tooth #30) which had root canal treatment ...
A: It either means that the retreatment did not work, or that another tooth is involved, or that the ...
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| new filling or crown | 9/24/2007 |
Q: My filling fell out with a piece of the tooth,unfortunately I have another filling in this tooth. My ...
A: It is never a good idea to "patch" into an old filling. If the filling is very large, it may be a ...
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| pain on bottom molar | 9/18/2007 |
Q: today i notice that my bottom left molar started to hurt when i bite down, it doesn't hurt every ...
A: You could have a partially fractured tooth (cracked tooth syndrome) or a partially fractured filling ...
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| root canal problems | 9/14/2007 |
Q: I am having problems with a tooth that needs a root canal. The dentist has tried twice but can't ...
A: "Infection" does not prevent someone from getting numb. It is extremely rare for someone not to get ...
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| Post Root Canal Pain - Worse in evening? | 9/9/2007 |
Q: I had a root canal done a month ago on my upper left back tooth. The tooth had been cracked a few ...
A: Your instincts were certainly correct in not having the crown permanently cemented. Cracked teeth ...
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| Root Canal gone bad! | 9/6/2007 |
Q: I had a two root canals done by a dentist 16 & 15 months ago. With the first one (#18), the dentist ...
A: I cannot possibly give you a worthwhile opinion without examinig you and seeing your radiographs. ...
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| pain in root treated tooth when stressed or worried | 9/5/2007 |
Q: been on a waiting list to see an endontist since then as that tooth has been treated a couple of ...
A: Pain comes and goes, we don't really know why. All speculation. I don't know why your tooth need ...
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| tooth pain | 9/4/2007 |
Q: 30# and 31# have been review by the dentist and endodontist to locate pain- constant dull ache and ...
A: Several problems. It can be difficult to discern which posterior tooth is aching, but if you test ...
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| abscess | 9/3/2007 |
Q: my husband has had severe abscessed teeth and whenever he gets to a dentist he always seems to pass ...
A: Hospitals in general are not equipped to handle dental problems. I have no idea why your husband ...
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| pain in tooth | 8/31/2007 |
Q: I had a root canal done on tooth #20 over a year ago. The tooth was "hot" at the time of the root ...
A: It is really impossible for me to tell you much, Sheri, without seeing you and your x-rays. However, ...
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| theraputic pulpotomy | 8/13/2007 |
Q: My step son is 4 1/2 is it normal for children of this age to have therapeutic pulpotomy procedures ...
A: If your child had very serious decay that went through the hard portion of the tooth and into the ...
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| root canal | 8/9/2007 |
Q: Doctor i had a root canal done on my lower wisdom tooth(the last molar on that side) ,55 days ...
A: Wisdom teeth have very variable anatomy; they can be very simple or very difficult. If you are ...
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| Failed root canal & infection | 8/8/2007 |
Q: Dr. Liewehr, I have been in good health most of my life. I "rarely" get sick. I usually eat a ...
A: You did the right thing, Chandra. The Internet is a wonderful tool, and I don't know how we did ...
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| Root Canal | 8/5/2007 |
Q: I had the final crown put on about 2.5 weeks ago. All was well until a few days ago when it became ...
A: Could be that the crown needs to be adjusted, and is contacting prematurely, that is to say, hits ...
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| Chemical spill on face during root canal treatment | 8/3/2007 |
Q: I went to a dentist and had half of root canal done and during the procedure he spilled a liquid ...
A: Chances it was sodium hypochlorite, which is Clorox. I personally do not use it for that reason ...
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| cracked tooth in pain needs root canal | 8/2/2007 |
Q: I have a cracked tooth around an old filling that is causing pain due to an infection in the root. I ...
A: No. Many dentists prescribe antibiotics, but they are ineffective because the problem, the bacteria, ...
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| crown | 8/1/2007 |
Q: Doctor i had a root canal done on my lower wisdom tooth ,46 days back.However the dentist put only a ...
A: Unless the tooth is very badly broken down, skip the post. Just fill the chamber with amalgam. ...
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| root canal for a 12 yr old | 7/28/2007 |
Q: My 12 yr old had sealants put on her molars last year. One year later, a 2nd dentist in the same ...
A: I can't answer this without engaging in a lot of guessing, which wouldn't help. Sealants are a good ...
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| Son 4 1/2 lost first tooth and something sticking out | 7/25/2007 |
Q: My son who is nearly 5 just lost his first tooth. Came out without any problem at pre school. ...
A: I couldn't say for sure without seeing him, but a new tooth would be firm and white, so it doesn't ...
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| deep cleaning of teeth | 7/23/2007 |
Q: My dentist recommends deep cleaning, and he is going to do the proceedure. Is a regular dentist ...
A: I have no idea what "deep cleaning" means. In order to assess your needs, I would have to have ...
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| Concern about a temp filling. | 7/21/2007 |
Q: I have the joy of looking forward to an extended set of surgeries for a root canal and crown; this ...
A: There are a number of materials that can be used for a temporary filling, and how long they last or ...
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| Open canal? | 7/19/2007 |
Q: I have a crown which is about three years old. The tooth has been root canaled. It has been feeling ...
A: An untreated canal could certainly be the source of problems. Sometimes these can be seen ...
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| molar extraction v. root canal | 7/17/2007 |
Q: The dentist told me today that pain in my mouth was due to an unnoticed crack in a large filling ...
A: I have no idea how "deep" the decay actually was, how much dentin may be left, whether you tooth is ...
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| My front two teeth are chipping away!! | 7/11/2007 |
Q: I have a serious question for you Doc. Starting around 7 years ago, my 2 front teeth on my top jaw ...
A: There is a phenomenon called abfraction where this takes place. You may also have other issues. In ...
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| Pain after root canal | 7/6/2007 |
Q: Liewehr, Three weeks ago I had a RCT done on a premolar (number 12). My endodontist prescribed me 7 ...
A: I'm sorry, you need to be seen. I don't understand the sensitivity to hot and cold unless you have ...
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| toothache | 7/5/2007 |
Q: I have a white Filling but my tooth still hurts Dentist says no infection ive been on 2 lots of ...
A: You probably have a pulpitis, and inflammation of the pulp or "nerve" in the tooth. There are many ...
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| bone chips protruding through the gums | 7/3/2007 |
Q: after having six teeth extracted four weeks ago to accomadate a full top denture, I now have six ...
A: We call those "sequestrae". They are the result of the medullary (spongy, inside) bone being crushed ...
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| Old root canal now has pain | 6/29/2007 |
Q: My lower wisdom tooth had a root canal with a post done about 10 years ago. I have a partial ...
A: Unfortunately I can't tell you what the problem is with your tooth, whether retreatment will help ...
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| Root canal question | 6/28/2007 |
Q: Liewehr, In your professional opinion, can a root canal possibly help my crowned #4 tooth that is ...
A: I would need to know more, and really to examine you and look at your radiographs. Pain to biting is ...
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| pulp vitality | 6/27/2007 |
Q: I have had sensitivity on #30 over the last month. An old filling was replaced in 2004. The tooth is ...
A: I can't tell you much without examining you myself. However, if your cheek is swollen and the ...
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| Post Root Canal Severe Flare-Ups | 6/26/2007 |
Q: Dr. Liewehr, I am wondering, in your clinical experience, where the patient is suffering toothache ...
A: I'm sorry, your endodontist is wrong. Perhaps this is a function of his not being Board certified. ...
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| bio-calex/ Endocal 10 root canals | 6/25/2007 |
Q: I have been told by two dentists I need a root canal. Gutta percha root canals are dangerous ( ...
A: Gary, I don't know who these "dentists" you have been talking to are, but if I were you, I would ...
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| Is A Board Certified Endodontist The Gold Standard? | 6/24/2007 |
Q: Dr. Liewehr, you've helped me quite a bit with your answers to my questions, and I was hoping you ...
A: In general, a Board-certified endodontist should be more knowledgeable than one who is not. This is ...
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| Post Root Canal Severe Flare-Ups | 6/23/2007 |
Q: Dr. Liewehr, I am wondering, in your clinical experience, where the patient is suffering toothache ...
A: Unfortunately, what's done is done. It is ironic that yesterday I had a lady who had RCT done about ...
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| root canal treatment | 6/22/2007 |
Q: I've been told that last year that I need a root canal treatment; my dentist identified and dealt ...
A: Root canal therapy is based upon removing all the dead pulp tissue and bacteria that are in it, and ...
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| Post Root Canal Severe Flare-Ups | 6/20/2007 |
Q: Dr. Liewehr, I am wondering, in your clinical experience, where the patient is suffering toothache ...
A: I hate to Monday morning quarterback, but based upon what you told me: 1) If you had a toothache, ...
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| post root canal | 6/12/2007 |
Q: I had a cracked tooth, upper right second to last tooth. I had some pain but was traveling and ...
A: Actually, you answered your own question. Chances are it has a fractured root. If this is the case, ...
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| Craze Line | 6/11/2007 |
Q: I have what appears to be a craze line in each of my front two teeth. My top two front teeth align ...
A: This is not my area; I am an endodontist, not an orthodontist. Most commonly maxillary teeth are ...
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| crown | 6/8/2007 |
Q: for advising me to get the crown put on the lower wisdom tooth(third molar).I got the RCT done on ...
A: It is customary to wait a few days, but you should know if your tooth is comfortable within a week ...
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| RCT | 6/7/2007 |
Q: My wisdom tooth was paining me(not a lot) since the last week.Its only painining when i bite with ...
A: To give you an appropriate answer to your question, I would need to examine you, which of course I ...
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| root canal treatment | 6/4/2007 |
Q: I have had tooth cleaning last april 2, after 5 days my tooth#21 and 22 started to became loose and ...
A: This is a major problem that specialists face every day. Without going into detail, from what you ...
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| post and core | 6/1/2007 |
Q: what will happen if i have swallowed a metal post during post and core procedure?it happened 24 ...
A: Most likely, nothing. Normally, when this occurs, a radiograph is taken to ascertain for certain ...
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| root canal w/ loss of filling & pain | 5/31/2007 |
Q: I know I need to see my dentist. The reason Im writing is because I cannot understand after reading ...
A: This is a matter of semantics, Erika. I don't know what you do, but you are clearly not in the ...
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| Root Cannel | 5/16/2007 |
Q: I am going to get a root cannel done on a crowned tooth. My doctor said that he will try to take ...
A: Depends upon whether the crown and/or tooth are damaged in the process of removing the crown. I ...
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| Unfinished root canal. | 5/15/2007 |
Q: I had a root canal done on my bottom right back molar in January of 2006 and it was never finished, ...
A: First, I don't know what you mean, "it was never finished." Do you mean the root canal itself, or ...
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| root feels larger thru gum on front tooth | 5/11/2007 |
Q: Doctor: A root canal has been advised/planned for #9(old internal resorption, but recent pimple ...
A: You probably have had a longstanding inflammatory lesion, which we call chronic periradicular ...
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| Healing After Apicoectomy | 4/23/2007 |
Q: I had an apicoectomy on tooth #20 about 5 weeks ago and the gum below that tooth is still puffy and ...
A: Cary, I'm sorry but I can't be of much help without seeing you. Normally, I take stitches out in ...
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| cronic toothache | 4/22/2007 |
Q: over past 2 years, had two root canals in same tooth. seen 2 endodontist. both could not find ...
A: When teeth hurt from sweets, the pulp, or "nerve", is not dead. That is a sign of exposed dentin. ...
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| Sensitivity on Root Canaled tooth | 4/13/2007 |
Q: I just had a lower molar root canal the other day for irreversible pulpitus, there was no infection ...
A: I can't say for certain where your pain is coming from - there are a number of possibilities. First ...
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| Braces and root canal | 4/10/2007 |
Q: I'm 18 and I have had braces on for over 5 years. Recently my tooth has been in pain and through ...
A: The band does not need to be removed, as the endodontist will make his access through the biting ...
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| external resorption repair | 4/9/2007 |
Q: My tooth #23 had an area of external resorption (now cleaned out and filled with a temporary ...
A: There is a poorly understood entity called, "invasive cervical resorption", which sounds like what ...
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| Crack Tooth Pain | 4/2/2007 |
Q: After root canal therapy can a cracked tooth still have pain?
A: There are two sources of tooth pain, Tara. One is from the nerves inside the tooth, and the other is ...
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| root canal thorugh crown | 3/30/2007 |
Q: Liewehr. I have had a crown on tooth #18 for several years. It is porcelain on metal. I may need ...
A: If the crown is in good shape, I usually make a hole through it, which can be repaired afterward ...
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| Jaw Pain, Throbbing Molar | 3/26/2007 |
Q: Just recently had a molar prepped for a crown. Old filling removed, little decay, not too deep. I've ...
A: This probably has nothing to do with infection, Sam, but is simply what we call an "irreversible ...
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| root canal caps | 3/23/2007 |
Q: My 3 year old daughter may have to have a root canal. I really dislike the silver cap (with and ...
A: Baby teeth are not shaped like adult teeth, nor are they as strong. So, if a multi-surface ...
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| Crown and Root Canal | 3/21/2007 |
Q: When a dentist drills through a crown to do a root canal, what is the upper part filled with since ...
A: Sometimes a post can be fitted through an existing crown, it depends on a number of things. However, ...
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| Root Canal and Implants | 3/7/2007 |
Q: I had implants/some bone grafting/guided tissue regeneration just less than a month ago and now I ...
A: I cannot tell you whether or not the endodontic therapy can wait, because I don't know the condition ...
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| Dental | 3/5/2007 |
Q: 1. I am 54 years old and in a good general health. I have 25-year-old Russian steel crowns on teeth ...
A: It sounds like you have a very complicated treatment plan, David, so without examining you and ...
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| Sensitive tooth | 2/27/2007 |
Q: I have a really sensitive front tooth when touched or eating it hurts it is putting pain all through ...
A: I can't tell you what the problem is with your tooth without seeing you, of course. So you need to ...
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| Can you put a crown on without a root canal? | 2/26/2007 |
Q: About 9 months ago, I went to my local dentist and had a cracked filling in one of my molars. The ...
A: You certainly can have a crown placed without having endodontic therapy performed, but the tooth has ...
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| Root Canal | 2/19/2007 |
Q: I had a root canal done on February 13 and five days later, I still have pain. I am always thirsty ...
A: I can't really tell you much without seeing you and your radiographs. There could be a number of ...
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| Tooth pulling | 2/17/2007 |
Q: my boyfriend had his tooth cut out Thursday and the swelling went down but he said that it feels ...
A: This is not my field, Shay, as I am an endodontist, a root canal specialist. However, it is ...
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| Post Root Canal | 2/9/2007 |
Q: I went to the dentist in extreme pain on the right side of my mouth he said that I had an infection ...
A: Your dentist is the person you need to see. I cannot examine you or look at your x-rays, so I am not ...
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| calcified root canal | 2/8/2007 |
Q: i am a dentist and i have a case which has cacified root canals(lower left 6,MB is ok but D &Ml are ...
A: I routinely use a product such as RC prep for instrumentation for several reasons. However, I have ...
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| crown vs. permanent filling | 2/7/2007 |
Q: OK, I know you probably get this question asked all the time due to the cost difference between the ...
A: In the largest study that has been done on what actually happens following root canal therapy, a ...
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| root canal without crown | 1/25/2007 |
Q: How likely is it that a root canal filling will go wrong if a crown isn't put on. Is there any ...
A: When a tooth is endodontically treated, in order to gain access to the root canals, your endodontist ...
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| sir .do i need a cap on my lateral incisor, wat about stem cells. | 1/19/2007 |
Q: my lateral incisor had gotten infeted. the dentist got somebody who was authorised yo do a root ...
A: In general, if a front tooth is not broken down by decay, and has only a small hole in the back ...
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| Crowns for front teeth | 1/15/2007 |
Q: Liewehr, I recently had some extensive dental work done that included 3 root canals on my front two ...
A: That is tough for me to answer, Linda, without seeing you. However, in general, if you have an ...
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| pain after root canal and crown | 1/1/2007 |
Q: The reason I am concern about my pain is because I DID have a root canal done a few weeks prior to ...
A: Sorry, brain glitch. I missed the part about having had the root canal treatment! I really would ...
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| RCT/Accessory Canals/Cracked tooth syndrome | 12/30/2006 |
Q: Have there been any recent advances in locating accessory canals specifically in a tooth that is ...
A: There are a lot of questions there, Bob, but it seems like you are telling me that you have a tooth ...
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| pain after root canal and crown | 12/28/2006 |
Q: I had a root canal on tooth #18 (Back Molar) and my permanent crown placed on a few weeks ago. I ...
A: Your tooth is actually a hollow structure, the inside of which contains the pulp, or "nerve". This ...
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| How long do temporary filling last? | 12/25/2006 |
Q: I just got a root canal on my first left pre-molar and the dentist put in a temporary filling--the ...
A: Your question about the longevity of the temporary restoration depends on what your dentist used, ...
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| How long until root canal | 12/24/2006 |
Q: What is the maximum amount of time a tooth can be decaying until a root canal is necessary? Two ...
A: It is unfortunate when a situation such as yours develops. The problem is that when a filling is ...
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| root canal theatment | 12/18/2006 |
Q: after a first session of a root canal treatment, a little part of my tooth broke off. when i ...
A: Posterior teeth (molars and premolars) need to have crowns placed as soon as possible after root ...
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| root canal | 12/16/2006 |
Q: my endo root canal specialist told me he found only 2 canals and did not find a 3rd, the tooth was ...
A: Well, you never know, Howard. The most often quoted morphology study on that tooth is Skidmore & ...
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| Root Canal Pain | 12/14/2006 |
Q: I have an auto immune disease (Crohns) and have for a long time believed that my teeth are weakened ...
A: The good news, Jennifer, is that after a root canal you have no pulp, or "nerve" left in your tooth, ...
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| dental checkups | 12/10/2006 |
Q: I have my doubts about the safety of dental routine cleanings, and my husband and I are at odds as ...
A: I'm sorry you have received so much erroneous information. People need their teeth cleaned ...
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| Root Canal and Crown | 12/6/2006 |
Q: I got my second left molar tested from an Endodontist and he has recommended a root canal for the ...
A: When a tooth is endodontically treated, in order to gain access to the root canals, your endodontist ...
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| in pain after root canal | 12/4/2006 |
Q: I have been having strange pains after a root canal procedure done 5 days ago to the top right ...
A: Obviously it is very difficult for me to help you without seeing you, your radiographs, etc. ...
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| Root canal on teeh #30 and #31 | 12/3/2006 |
Q: On June 26th, 2006 I had splinted crown on teeth 30 and 31 removed and some dental carie with a ...
A: It is pretty difficult for me to diagnose your problem without seeing you and your x-rays, Deana. ...
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| Crown pain | 11/30/2006 |
Q: I had two crowns put on my left bottom molars a few weeks ago. When the dentist pushed one down the ...
A: Your tooth is actually a hollow structure, the inside of which contains the pulp, or "nerve". This ...
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| Roor Canal | 11/10/2006 |
Q: I hope you can help me. Long story, but I had a root canal redone this past February by a root ...
A: Unfortunately I can't answer that type of specific question very well without seeing you and your ...
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| nerves | 11/8/2006 |
Q: Why do teeth have nerves? They just make the teeth sensitive to temperature and hurt in tooth ...
A: The reason people get confused about this is that the common term for the tissue inside the hollow ...
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| Intense pain during root canal | 11/7/2006 |
Q: I've had root canal procedures before (by an endo.) this time I had a root canal (upper molar) done ...
A: Well, to be honest, Lori, I would go to an endodontist to have endodontic treatment. That is his ...
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| Root Canals/ Fussy doctors | 11/4/2006 |
Q: I have a root canal on a tooth that died when I was younger. The first doctor (English) did a poor ...
A: I don't know why that would be, either. I am more than happy to do retreats, and do so all the time. ...
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| root canal post-pain | 10/30/2006 |
Q: I had a re-treat root canal 3 days ago. The day after I felt fine. Yesterday pain got ...
A: Unfortunately, Lori, you are experiencing what we call a "flare-up". A flare-up is an extremely ...
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| Bitter Taste after root canal treatment | 10/28/2006 |
Q: I've had a really bad year for teeth. What my dentist thought was a sinus infection turned out to ...
A: I'm not really in any position to advise you, since I cannot see you, but it sounds to me like you ...
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| Root Canal Post | 10/26/2006 |
Q: When doing a root canal does an endodonist always use a post? What circumstances would a post be ...
A: A post is placed when there is insufficient tooth structure to retain a core, which is the filling a ...
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| Post-RC Chemical Burn | 10/18/2006 |
Q: Liewehr, I just had a root canal (only about one hour ago, actually), and the procedure went very ...
A: The epithelium in your mouth probably heals faster than any other tissue in your body, so you will ...
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| Upper Jaw/tooth/cheek pain | 10/11/2006 |
Q: I had a root canal performed approximately 2 years ago - apparently my roots are not straight but ...
A: If surgery is what is needed, then there is really nothing else that will help. Antibiotics do very ...
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| About tooth sensitive to cold water | 10/4/2006 |
Q: after a month of having a cavity filling my molar is still sensitive to cold water. Is this normal ...
A: There are multiple reasons why this could be occurring. Your new restoration could be "open"; that ...
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| root canal for the chemically sensitive patient | 10/3/2006 |
Q: I am wondering if there are any safer techniques for root canals for the multiple chemical sensitive ...
A: I am afraid that "holistic" and "natural" dentistry are basically undefined practices that are ...
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| Failure of Crowns? | 10/2/2006 |
Q: Dr. Liewehr. I've now began to wonder: What would be the disadvantages of having root canal therapy ...
A: The only disadvantage I can think of is that the treatment might not be successful. Nothing is ...
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| Failure of Crowns? | 9/30/2006 |
Q: What percentage of the time does a crowned tooth end up requiring a root canal therapy? Every ...
A: That's a good question, Joan. My problem is that I can't tell you from personal experience, because ...
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| Gray Tooth | 9/29/2006 |
Q: About a month ago, I was hit in the mouth with a bass guitar. My tooth was loosened - the one on the ...
A: You should set up an evaluation appointment with an endodontist, Kevin. When a tooth is traumatized ...
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| Broken file under tooth | 9/27/2006 |
Q: My general dentist broke off a file in my wife's #30 tooth during a root canal. He is recommending ...
A: Unfortunately, Mark, file separation happens sometimes, and not infrequently. It has increased with ...
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| Root Fracture | 9/26/2006 |
Q: Could you please tell me what the symptoms are of a vertical root fracture resulting from root canal ...
A: Fractured roots generally cause mild discomfort; sometimes all the time, usually more so when ...
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| painful tooth | 9/23/2006 |
Q: i went to the dentist yesterday and was told a root canal would have to be done..ive had one before ...
A: Unfortunately, without examining you and so forth I cannot diagnose your problem accurately. ...
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| Root Canals+Temporary fillings and crowns | 9/21/2006 |
Q: I am 24years old in good overall health. I recently changed dentists because of a relocation and I ...
A: Everything your dentist did sounds fine to me, Alan. You had what we call recurrent decay on your ...
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| therapeutic root canal | 9/19/2006 |
Q: I had 2 therapeutic root canals performed on me yesterday. I did not fully understand my dentists ...
A: I'm sorry, Tiffany, I have no idea what your dentist meant by "therapeutic root canal". I am leary ...
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| Tests to determine need for root canal | 9/18/2006 |
Q: What tests do endodontists do to determine the need for a root canal? Any special tests for cracks ...
A: Many tests are done, including palpation, percussion, probing, mobility testing, thermal testing, ...
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| Post Root Canal Pain | 9/13/2006 |
Q: Six weeks ago I had a root canal performed by an endodonist on tooth #13. I was told the procedure ...
A: It is very difficult for me to guess what the problem might be, Patricia. I don't have the benefit ...
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| root canal retreatment | 9/10/2006 |
Q: I had a 7-year-old root canal (on #14) retreated this past Thursday (7 September)--I had had pain on ...
A: You are probably experiencing what we call a "flare-up", which is a very loosely defined set of ...
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| Apicectomies | 9/7/2006 |
Q: I had a root canal done to an inscisor about twenty years ago. The tooth underneath the gum has ...
A: Whether or not apical surgery is appropriate for your tooth depends upon a number of factors, one of ...
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| post root canal complications | 9/6/2006 |
Q: I have been bothering you with this for a while now.I had RC done on # 20 about 40 days back.I was ...
A: I answered this, but I don't know what happened to my answer. Maybe you got it? At any rate, most ...
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| Serious Problems Following Root Canal | 9/3/2006 |
Q: I had a root canal started on a lower right molar approximately three weeks ago. The doctor had ...
A: Gosh, Karen, I can't possibly think what might be wrong either. The only thing the dentist did was ...
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| root canal pain | 9/2/2006 |
Q: , My name is Christine. I am a 30 year old woman who had 2 root canals done today on tooth #'s 28 ...
A: I am very sorry you are having all this post-op pain. That is quite unusual. There is a certain ...
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| root canel | 8/28/2006 |
Q: I had a root canel done in June of this year. My dentist had a difficult time locating one of the ...
A: It is hard for me to say, since I don't know exactly what you mean by "a little discomfort". Try ...
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| 3 Months after root canal, still sensitive to hot temps. Is this normal? | 8/26/2006 |
Q: I am a 25 year old female. I have had several (4) root canals. The most recent one was done on my ...
A: I don't know why you had crowns placed on all your teeth, whether is was beause of trauma or for ...
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| Broken tooth | 8/12/2006 |
Q: Dr. Liewehr, I recently wrote to you regarding whether I should have a crown put on my bottom molar ...
A: Of course, since I can't see you and your tooth, I can't tell you for certain, but you are probably ...
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| general anesthesia for 5 yr old | 8/10/2006 |
Q: 5 months ago my daughter was diagnosed as needing 3 root canals (pulpectomy) and 7 fillings. She is ...
A: There are many types of sedation available, Naiomi, and the risk varies. A good, short, list with ...
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| How many visits for a root canal? | 8/9/2006 |
Q: How many visits does it take to complete a root canal? I'm not sure what happened, but after the ...
A: Anna, I'm not sure I understand what happened to you. I understand that you went to a dentist for a ...
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| Crown after root canal? | 8/6/2006 |
Q: Last Friday I received a root canal on a bottom molar. The Endodontist said after he was finished ...
A: Yup, you need a crown. In the largest study that has been done on what actually happens following ...
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| dental anesthetics cause itching | 7/28/2006 |
Q: I had a filling done yesterday and i've been having a lot of itching, is that a side effect that ...
A: You don't tell me where you itch, Dawn, so I am not sure that I can answer your question. If you ...
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| Root Canal Necessary? | 7/27/2006 |
Q: I had a large filling come out of my molar and my dentist says I need a root canal. He doesn't ...
A: I can't really answer your question, why your dentist recommended endodontic therapy, without ...
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| Implants or Root Canal | 7/21/2006 |
Q: I am a 58 year old male who had the two teeth at the front just right of centre knocked out (they ...
A: I would absolutely do the endo, Al. Replantation of avulsed teeth is very common, and if the tooth ...
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| my root canal | 7/20/2006 |
Q: My face was swelling and tooth problem. I went to the dentist 2 days ago. They told my my tooth was ...
A: What you have going on is an emergency, and you need to be treated right away. I presume from what ...
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| Pain Years After Root Canal | 7/17/2006 |
Q: I had a root canal done about 6 years ago, and a crown was placed on top. The past two days I have ...
A: You are absolutely right; once you have had the pulp or "nerve" removed from your tooth you should ...
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| Pain | 7/16/2006 |
Q: I was to the dentist a few weeks ago for an infection and I needed a root canal. I decided to wait ...
A: Michael, when you have an infection in your bone that is caused by bacteria in your tooth, there is ...
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| Decay | 7/14/2006 |
Q: I am 29 years old male. I am having problem with TOOTH DECAY with my Second & Third Molar Tooth (all ...
A: Tooth decay is caused by bacteria in your saliva. Your tooth is made up of dentin, which has a shell ...
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| 2 year old w/ abcess | 7/7/2006 |
Q: my two year old has had two fillings behind his front teeth and had also bumped his two front teeth ...
A: Yes, endodontic therapy can be performed on your son. It would save him a lot of years of being ...
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| pain after temporary crown | 7/4/2006 |
Q: I broke the side off from my back lower right tooth (last one before wisdom, which was removed years ...
A: Without examining you and looking at radiographs, I can't tell you what your problem is, Gia. E-mail ...
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| root canal | 7/1/2006 |
Q: I need to have 1 root canal done but the shots with the epinephrine cause rapid heartbeat. Can a ...
A: Epinephrine is added to local anesthetic to ensure that it in fact remains local, that is, does not ...
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| crown and root canal | 6/27/2006 |
Q: I recently had a wisdom tooth pulled. During a regular cleaning they found a cavity high up and on ...
A: Its really tough for me to even guess what the problem is without seeing you and a radiograph of ...
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| crown and root canal extraction | 6/20/2006 |
Q: I have a crown coveringing a root canal treatment. While on holiday I had a swelling on the inside ...
A: I have no idea why you are to go to a hospital to have your crown removed. Hospitals (unless they ...
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| Post Root Canal Sensitivity | 6/15/2006 |
Q: Good Afternoon Doctor, I recently had a root canal on tooth #3 after an old filling failed. I was ...
A: Your symptoms are a little confusing for me, Mark. If I understand correctly, you now have ...
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| Temporary filling and Pellets left under Permanant Crown | 6/6/2006 |
Q: I had a root canal performed some time ago then my general dentist set a temporary then a permanant ...
A: I can't give you an explanation for why your former general dentist left the temporary with cotton ...
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| extraction or apicectomy? | 6/1/2006 |
Q: ------------------------- Followup To thank you for your kind answer. Just so you know for future ...
A: Physicians frequently know little about dentistry, so it is not surprising that they would not ...
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| extraction or apicectomy? | 5/31/2006 |
Q: Psychologically I am at the end of my nerves with a tooth problem. I have been prodded touched, ...
A: I'm afraid that you have a problem that I can't help with much by e-mail. I would really need to ...
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| Pain under crown | 5/21/2006 |
Q: I had my 1st crown done a year ago. In recent weeks I've begun to experience tooth ache from this ...
A: I'm not sure what I can tell you, Patricia. If you have had root canal therapy on this tooth, you ...
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| Sinus Infection on a Single Tooth Possible? | 5/19/2006 |
Q: Liewehr, Recently I have been experiencing tooth pain on my upper left lateral tooth when you tap ...
A: If you mean your left lateral incisor, sinus pain is not a possibility, because the sinuses ...
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| Pain after root canal | 5/7/2006 |
Q: .on Saturday, I woke in the morning with "electric shock" feeling in my right front tooth. It felt ...
A: I am SO sorry that I can't be a lot of help, because this e-mail format is no substitute for and ...
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| Tooth Sensitivity after Root Canal | 4/24/2006 |
Q: I hope you can help. I had a root canal treatment completed on my right canine five months ago. This ...
A: Gosh, I'm usually pretty good at guessing on these e-mail questions, but you have me stumped. I ...
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| Post Root Canal Pain | 4/17/2006 |
Q: Liewehr, I had a filling on my #31 tooth that had rotted somewhat so it had to be replaced. It was ...
A: Yours unfortunately is one of the cases I can't be very helpful with, because I would need a ...
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| A good dentist? | 3/15/2006 |
Q: I was informed (about a year ago) that I may need a root canal by a friend who was a dentist's ...
A: I'm sorry, I don't know anyone in that area. The only thing I could suggest is that you look at ...
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| acronyms | 3/2/2006 |
Q: My dentist has the acronyms ,FICD, but the other one I went to see has D.D.S., can you tell me which ...
A: Those abbreviations can be confusing! Any dentist (educated in the U.S.) has either a DDS (Doctor of ...
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| HELP! A.S.A.P | 2/25/2006 |
Q: My husband had two teeth pulled yesterday and they put something in the holes, my husband just ...
A: Well, I'm not an oral surgeon, and you probably would want to direct your question to one, but I ...
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| Freezing During Tooth Extraction | 2/15/2006 |
Q: A friend and i are discussing an event that happened to hom while at the dentists. He says that ...
A: Normally an infiltration such as what should have been done for the surgery would not go into the ...
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| Over-filled Root Canal | 2/12/2006 |
Q: Last year I had a root canal on my left back molar which was overfilled. Even before I had the crown ...
A: I can't help you with this without seeing you, Linda. We in endodontics are very critical of ...
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| Excruciating Pain Post Root Canal | 2/7/2006 |
Q: my dentist replaced a filling almost a year ago on my upper left side molar (second to last tooth). ...
A: I'm surely sorry that you are having all this problem with your tooth. Diagnosis, which means simply ...
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| Root canal after bridge | 2/5/2006 |
Q: I recently had a bridge connected to 2 healthy teeth(the dentist said) after 1 week had some pain ...
A: I'm sorry that you have this problem, and feel for you. It sounds like you have developed a ...
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| Still in pain | 1/25/2006 |
Q: Let me first THANK YOU for taking the time to read this! On 01-14-06 I started experiencing ...
A: Of course you understand, Sandra, that I can't really diagnose your problem without having you in my ...
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| Systemic infection | 1/13/2006 |
Q: Liewehr, I have suffereed from groin pain for months and have been tested for almost everything ...
A: Extremely unlikely, Brad. Lymph vessels drain the approximately 2% of fluid that does not ...
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| root canals on two front teeth | 1/12/2006 |
Q: In September my 14 year old daughter went to the dentist with tooth pain and we were told she needed ...
A: This is a hard one, because I do not like to comment on cases I have not seen, and about which there ...
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| Tooth and jaw paint | 1/12/2006 |
Q: I have developed some tooth pain in the last few days that can be very painful at times. About 3 ...
A: There are two possibilities here, Tim. One is nonodontic pain, meaning it does not come from a ...
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| root canal | 1/2/2006 |
Q: I got a root canal 2 months ago and the back tooth still bothers me, I had a specialist do the work ...
A: By all means go back to the specialist who did the work. If you had your car fixed, you would take ...
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| Root canal question | 11/2/2005 |
Q: I had 6 veneers placed on my front teeth almost a month ago. They all feel great except for one. It ...
A: Veneers can be a problem. The basic principle behind any kind of crown and bridge is that the ...
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| Root Canal | 10/13/2005 |
Q: I had a root canal on tooth #18 on Friday 10/7 and had it completed on Tues 10/11. I still have ...
A: I am sorry to hear that you are having so much trouble with your root canal therapy. That is really ...
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| I have been suffering for... | 10/8/2005 |
Q: I have been suffering for years with tooth pain in my 2 upper back teeth. (Not my molars, they have ...
A: No, Vincent, I don't think so. That is a procedure we perform when conventional endodontic therapy ...
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| preschooler root canal | 10/7/2005 |
Q: I have decided to go ahead with my son's baby root canal, but I am wondering how time sensitive this ...
A: How fast you need the treatment depends on the condition of the teeth, which unfortunately I don't ...
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| preschooler root canal | 10/5/2005 |
Q: My 3 year old was just diagnosed with 8 cavities (even though he brushes daily and doesn't eat ...
A: Your child still needs to get several years of use from those teeth. When the teeth decay, the ...
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| problem with root canal? | 9/25/2005 |
Q: Liewehr, Two years ago I asked your opinion on my options/alternatives to apicoectomy after ...
A: I'm sorry for taking some time, Vlad, but I could not get back home for several days due to the ...
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| Pain after a root canal | 9/16/2005 |
Q: I had a root canal on a molar on September 1st. I went to an endodontist and he was able to perform ...
A: That is unusual, Greg, but not rare. Pain is not, strange as it may seem, a good indicator as to ...
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| Crown w/Crown lengthening or extraction? | 9/7/2005 |
Q: Liewehr, I had a root canal on #16 (far back molar) two years ago. I was young and stupid, and the ...
A: Don't beat yourself up, Kristine. #16 is your wisdom tooth, and very, very few people would have a ...
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| broken tooth | 8/31/2005 |
Q: a little less than a month ago, I began a root canal on my #19. it was very calcified, so i have to ...
A: The real question is whether or not the tooth is sealed despite the loss of a portion of it. If it ...
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| Root Canal Needed Again ??? | 8/30/2005 |
Q: I am not too sure where to begin, but I will give it my best shot. I am 26 years old, and I have ...
A: I would really like to help you with your problem, but I simply don't have the information I need to ...
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| Root Canal | 8/25/2005 |
Q: I got a very white color temporary filling on my uppertooth on right side yesterday , its looks ...
A: It sounds like your dentist placed a temporary filling made of a substance called IRM for ...
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| Bump on the gum | 7/31/2005 |
Q: This is the timeline: 10 months ago, my #30 suddently feel very painful. It lasted for several ...
A: Unfortunately I cannot see and examine you, so I can only respond to what you have told me. The ...
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| Root Canal Therapy | 7/21/2005 |
Q: I had a root canal treatment on a tooth that was throbbing, but not excruciating pain. My dentist ...
A: The problem with this Internet forum is that there is not a whole lot that I can do for someone like ...
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| What if I Wait - Molar with dead nerve? | 7/14/2005 |
Q: I felt slight throbbing under my lower left molar and the dentist says it's partially or completely ...
A: If your dentist tested your tooth and it is completely non-responsive, that is, you didn't feel the ...
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| Root Canal | 7/13/2005 |
Q: seven years ago I had two root canals and everything went fine but I did not go back to get the ...
A: The answer to your question depends on a couple things. The reason we put crowns on root-canal ...
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| Temp. Crown Nerve Damage | 7/11/2005 |
Q: My dentist recently prepared a cracked molar for a temporary crown, and said after he had chiseled ...
A: Some of the answer depends upon the shape your tooth's pulp, or "nerve" was in before the crown was ...
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| Root Canal Therapy | 6/8/2005 |
Q: Liewehr, I'm near the end of having root canal therapy of a tooth that has a gold crown in the ...
A: It's nice to see that you are interested in your care, and have obviously done your homework. I must ...
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| Root canal work on #4 tooth | 5/20/2005 |
Q: Liewehr: I've just had root canal work done on my #4 tooth. My regular dentist says that the job ...
A: Many morphological studies have been done, and they always result in somewhat divergent numbers, so ...
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| Root Canal | 5/4/2005 |
Q: While going out to dinner with my wife, I had terrible pain in my left jaw. Woke up at 2 AM with the ...
A: It would really be impossible for me to evaluate your dentist without any further information. He is ...
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| endodonics | 4/20/2005 |
Q: Is it common in your clinical experience for pts to decline root canal therapy and opt for ...
A: Not really, Dax; people who come to me, being an endodontis, have already made the decision to save ...
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| do i need a root canal? | 3/24/2005 |
Q: Liewehr: I am 28 yrs old and have one partially erupted wisdom teeth on my right side of the mouth. ...
A: Unfortunately it is impossible for me to answer your question as to whether you do or do not need a ...
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| root canal | 2/24/2005 |
Q: I recently had two root canals performed on #19 and #20. The molar was done first. The problem is ...
A: It is very difficult for me to say what the cause of your discomfort is. There are nerves in the ...
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| alternatives to root canal treatment | 2/20/2005 |
Q: I have a problem with one of my teeth, its sensitive to cold things and on biting.There is no pain. ...
A: I am sorry that you read that article on the Web. It just goes to show one of the difficulties with ...
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| sensitivity to cold | 2/16/2005 |
Q: I have a cap on my front top tooth and ever since my last cleaning it is very sensitive to cold ...
A: Sensitivity to cold is not uncommon following tooth cleaning, whether or not you have a crown on ...
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| Surgery | 2/8/2005 |
Q: Liewehr, My girlfriend attempted to have cosmetic surgery on her teeth, but has suffered a variety ...
A: I would like to help you with this, but I am very confused about what you are telling me. I don't ...
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| Post-root canal pain | 2/4/2005 |
Q: Followup To Question - I had a molar root canal 17 days ago. I've had pain since, pain like a ...
A: I'm very glad you got a resolution to your problem. It is not at all uncommon (unfortunately) for a ...
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| Post-root canal pain | 2/3/2005 |
Q: I had a molar root canal 17 days ago. I've had pain since, pain like a tooth ache. Two Ibuprofens ...
A: At this point it is impossible for me to give you any better information without actually examining ...
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| Post-root canal pain | 2/2/2005 |
Q: I had a molar root canal 17 days ago. I've had pain since, pain like a tooth ache. Two Ibuprofens ...
A: This is not supposed to happen! When you have endodontic therapy, the pulp, which contains the ...
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| teeth | 1/26/2005 |
Q: What does a dentist mean when he refers to the "7,8,9, and 10 teeth"? Thanks Jo
A: To make life easier by not having to write long, descriptive names for teeth like "maxillary lateral ...
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| root canal | 1/17/2005 |
Q: I have a tooth with a deep filling which has also been broken and repaired several years ago. The ...
A: I am afraid that we have run up against the limitation of this on-line service, which is that I need ...
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| TOOTH PRESSURE | 12/14/2004 |
Q: I'M 50. Two years ago I went to a newish dentist and he sent me to an endo for my first rc. He said, ...
A: A crack is not a fracture in dental terminology, Suzy. A crack, as used in "cracked tooth syndrome", ...
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| TOOTH PRESSURE | 12/13/2004 |
Q: I'M 50. Two years ago I went to a newish dentist and he sent me to an endo for my first rc. He said, ...
A: Unfortunately, there is no way I can tell you what is causing your discomfort without seeing and ...
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| Root canal after crown | 11/3/2004 |
Q: My dentist recommend that I have a crown placed on a bottom chewing tooth because it had lots of ...
A: Unfortunately, your question is one of those that are impossible for me to adequately answer without ...
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| Abcessed tooth | 10/22/2004 |
Q: A couple questions. What are the symptoms of an abcessed tooth? I always heard that an abcessed ...
A: "What is an abscess" is the relevant question. An abscess is a localized collection of pus. ...
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| root canal | 10/8/2004 |
Q: i'm 18 and i knocked my front tooth out playing on a trampoline 4 months ago. i went to the dentist ...
A: As nearly as I can tell, from what you have told me, you had your teeth replaced incorrectly after ...
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| root canal | 10/1/2004 |
Q: If a person has an abscessed tooth, is pain always present? Also, can an abscessed tooth cause a ...
A: The answer is that there are two kinds of endodontic abscesses; one is painful and the other is ...
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| Treatment following root canal therapy | 9/30/2004 |
Q: I'm a bit baffled by my dental treatment and wondered if you could set me straight. In July of ...
A: It is unfortunately impossible for me to tell you exactly what is going on with tooth #21 without ...
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| pain after having a filling done | 9/25/2004 |
Q: On the 23rd I had 4 fillings done, I have 2 more I will have done on the 4th of OCT. The dentist ...
A: I have absolutely no experience with laser treatment, so it is hard to tell you what to expect. ...
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| root canal | 9/16/2004 |
Q: If I need a root canal, is there another method just fil the tooth just as a regualar cavity? i just ...
A: You know, the problem with e-mail is that I can't see you. In order to answer your question, I would ...
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| I was wondering if there is... | 9/3/2004 |
Q: I was wondering if there is any way to "check" on a person's dentist. I have been told by several ...
A: Since I can't see you or offer you a diagnosis, I am not sure exactly what your dentist ...
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| root canal | 8/25/2004 |
Q: I had a root canal done 8-24-2004 I noted the next day the tooth does not have a crown on it. It has ...
A: If it is a posterior tooth (not in the front), it needs a crown so that it doesn't break when you ...
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| To give you alittle history,... | 8/21/2004 |
Q: To give you alittle history, dont know if you really need it. My braces have been off since 1994, ...
A: Well, it sounds like you are due for a visit to the dentist! Fillings are either metal or plastic ...
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| Crown Lengthening | 7/28/2004 |
Q: I am a 48 year old mom who is currently working with childing in an elementary school. I am going to ...
A: I am an endodontist, a specialist in root canals, so I think probably you would rather speak with a ...
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| temporary filling | 6/20/2004 |
Q: Could you please give me an idea how long a temporary filling last in a root canal. I had one done ...
A: The answer to your question is, "It depends on what your dentist used for a "temporary" filling". ...
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| Root Canal | 6/7/2004 |
Q: Is it required to be put asleep during a root canal, or can it be done with local anesthesia? Also, ...
A: Nah, it's no big deal. Actually, you get the same shot you would to have a filling done. In fact, ...
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| Dentistry | 5/26/2004 |
Q: Three years ago, my daughter (21 at the time), went to a dentist for a porcelain veneer on her front ...
A: I have to clarify a little what I think your dentist was trying to tell you, and will respond ...
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| what could cause this? | 4/3/2004 |
Q: recenatly i had a bridge done over 1 missing tooth & 2 supporting teeth. i had 2 big fillings in the ...
A: Ayelet, I really don't like to get in the middle of these situations where there has been a ...
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| what could cause this? | 3/31/2004 |
Q: recenatly i had a bridge done over 1 missing tooth & 2 supporting teeth. i had 2 big fillings in the ...
A: From whay you describe to me, it sounds like the nurse was probably correct. The tooth is actually a ...
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| Tooth Pain | 3/21/2004 |
Q: Liewehr, Please help me out if you can. For the last week I have been congested. For the last two ...
A: I'm very impressed that you are aware that other thngs going on in your body can cause what seems to ...
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| Dental Ethics | 3/16/2004 |
Q: Liewehr, If your Dentist was grinding a tooth down (Molar) to prepare it for a crown and were to ...
A: Unfortunately I can't give you a definitive answer without seeing your teeth and what was done. I ...
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| Problems | 2/12/2004 |
Q: i had several root canals with crowns done several months ago. i have been uncomfortable ever since. ...
A: The problem with this Internet Q&A format is that I can't see you, which I would really need to do ...
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