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Dentistry/12 year old molars

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Question
Dear Mr. Moss, I just turned 13 in April but I am just now getting my upper set of 12 year old molars. Anyway as you can guess it is pretty sore up there anyways, is it possible that a tooth growing in on the top can affect a tooth on the bottom of my jaw? It is kind of worrying me because every now and then my tooth gets a little bit sore. And it made me curious. And while I'm already boring you I have another question, my permanent tooth is growing in crooked because I had a problem when I lost the baby tooth, my tooth broke in half so two parts of my tooth came out instead of one whole tooth, it is kind of sore.... Is it normal for a tooth that is coming in crooked to be a little bit sore? I don't want it to be a cavity because I can't  really reach it that well with my tooth brush but I clean it as best as I can.

Answer
Dear Sarah,
hope I can help a little bit to make you comfortable.
If you swish hard with warm water that has just a little salt in it for 2 to 3 minutes every time you are sore in the upper teeth that should help until the tooth erupts into your mouth. Two or three time a day and you should start to feel much better.
I can't help you too much with the problem in your bottom teeth without having a picture of how much the permanent tooth has moved into the space of the baby tooth that broke in two.  My experience is that after the permanent molars have erupted and the top and bottom teeth come together when you bite, the discomfort that you describe tends to go away.  
Tried to help with this answer but as you have probably figured out by now, it would be best if you let a dentist take a look at what is happening and give you advice based on a good examination.
All the best,
Dr. Moss

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Stephen J. Moss

Expertise

I am a professor emeritus at New York University, with a background that includes extensive research, scientific writing and biology. I also am an international consultant in health education, particularly in developing education on new science for health professionals and consumers. I am a past president of the American Academy of Pediatric Dentistry, former head of the NYU Division of Oral Biology and I represent the World Dental Federation at the United Nations. I travel around the world to provide health education to professionals and consumers.

Experience

Having retired from New York Universit, where I directed the pediatric dentistry training program, a walk-in dental clinic and research on oral biology, I formalized my professional and consumer health education initiative in the form of Health Education Enterprises. This entity consults and provides information on new science pertaining to oral and general health, particularly leading edge concepts that can be employed in the health professions to improve the public's health. As such, I am an expert in communicating new science and its usefulness to professional and lay audiences alike. I also had a pediatric dentistry practice in New York City for nearly 30 years.

Organizations
I am affiliated with the American Dental Association, the World Dental Federation, the International Association of Pediatric Dentistry and the American Association of Pediatric Dentistry among other formal organizations. My experience has included a research fellowship at the National Institutes of Health and work at the Forsythe Dental Research Center

Publications
lpha Omegan USA, Nowa Stomatologia Poland, Journal of Public Health Dentistry, The Journal of the Southeastern Society of Pediatric Dentistry USA, News Bulletin Japan, Journal of Marmara University Dental Faculty Turkey, Italian Journal of Paediatric Dentistry Italy, Asian Dentist Singapore, The Journal of the Israel Dental Association Israel, ROBRAC Brazil, Italian Journal of Paediatric Dentistry
Italy, FDI World, STOMA Portugal, Pediatric Dentistry The Philippines, Modern Stomatology Bulgaria, Journal of the Indian Society of Pedodontics and Preventive Dentistry India

Education/Credentials
I obtained a doctor of dental science (DDS) degree, a master of science degree and am a board certified pediatric dentist.

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