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About Frederick R. Liewehr DDS, MS, FICD
Expertise I can answer your questions about root canal therapy in general. PLEASE DO NOT ask me to diagnose your particular problems or recommend treatment as I cannot do this without examining you and seeing your x-rays.
Experience I am a Board-certified endodontist, former university department Chairman, teach dental residents, and have a private practice.
Organizations ADA, AAE, ICD, AAOM, FDI, AMSUS, AAOB
Publications J of Endodontics, Endodontics and Dental Traumatology, O,O,O, Military Medicine, Medical Bulletin, J of Dental Education
Education/Credentials DDS, MS (Oral Biology), certificate in Endodontics
Awards and Honors Surgeon General's "A" Designator, Fellowship ICD, Order of Military Medical Merit
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You are here: Experts > Health/Fitness > Dentistry > Dentistry > Post-Root Canal Problems
Dentistry - Post-Root Canal Problems
Expert: Frederick R. Liewehr DDS, MS, FICD - 11/9/2009
Question I had an exposed nerve and constant tooth pain and so my dentist recommended a root canal. I had a root canal and the tooth was filled instead of a crown. I began experiencing pain/sensitivity on both sides of the tooth and sometimes on the surface when I chewed. My dentist could not find anything wrong with the tooth and sent me back to the endontist who did the root canal. He found a small crack in the tooth and recommended a crown. I had a crown put on and am still experiencing the same discomfort. It is not necessarily pain but the side of the tooth closest to the cheek is sensitive to the tooth if I touch my cheek. There is also some sensitivity and slight pain when I eat on the tooth as well. Therefore I am very reluctant to eat on the tooth at all. What could this problem be? Is my only other course of action to have the tooth pulled? Could I need another root canal on the same tooth? Any advice you can offer would be greatly appreciated as I am very concerned. Thank you for your time.
Answer I can't give you accurate advice without knowing what your endodontist saw when he treated your tooth. However, putting a crown on after the tooth is cracked is often closing the barn doors after the cows are out. Too late. It prevents further splitting, but obviously cannot repair the damage already done. So, these teeth often never feel right to biting. If the tooth is sore to touch, the crown may be too "high", in hyperocclusion. You can test for this by biting and grinding with nothing in your mouth. If this hurts, your crown needs to be adjusted, and the constant pounding may be making your tooth sore. If it doesn't, and if the tooth is sensitive to cold, the endodontist could have missed a canal, but this is rather unlikely. You shouldn't overlook the possibility that it is another tooth, either. Your endodontist should be able to help you sort this out.
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