Dr Mc Vaugh personally takes the time to explain what is happening to your teeth when you complain of such sensitivity of a front crown that even a light touch creates incredible pain. I had the crowns done in Memphis at the dental college about 10 years ago. The crowns are intact but for whatever reason the nerve decided to die creating absess and pain. Of course, root canals were not performed when the crowns were. Dr McVaugh prescribed an antibiotic, and pain meds today. After the pain and sensitivity have passed, a root canal has to be done. I recommend Dr McVaugh for all your family dental needs.