Dr. Smith performed a root canal on one of my molars 8 months ago following 4 days of extreme tooth pain. The pain was relieved immediatley but discomfort persisted and the tooth could not be crowned. When it became apparent the discomfort level was not going to diminish, Dr. Smith performed a second root canal on the aching tooth at no charge. Unfortunately this provided no relief. New xrays by an oral surgeon show that an adjacent molar is abscessed requiring yet another root canal. Was this adjacent tooth infected from the beginning but undiagnosed? There is no way to know at this point. Was the first proceedure performed on the wrong tooth? Since the pain was relieved the answer would seem to be it was the right tooth. Draw your own conclusions from my dental saga. My own conclusion is that the continuing problems I am experiencing are in no way due to Dr. Smith's performance. In fact I plan have him do the next root canal.