Has any one EVER heard of a dentist leaving a piece of a broken drill bit in a root canal and sealing it in? Recentely, I had to have an apconectomy done because there was an abscess where a root canal had been done. The oral surgeon found a piece of a drill bit in the work the other dentist has done. Now I wonder if that drill bit caused the abscess, which in turned caused me thousands of dollars (and let's don't even get into the pain it's caused) to have fixed! I still have moderate pain in that tooth, and have been told to expect this pain for anywhere from 2-3 months! Does any one know anything about this?