Q. 9 months ago I had cosmetic dentistry done on 6 of my top front teeth. I had one root canal, 4 crowns, and 2 veneers. After the root canal was done I had discomfort running down the front of my tooth whenever there was any front to back pressure on my tooth. It was crowned anyway thinking it would go away. My dentist now thinks I may have a hairline fracture in the root. We already redid the root canal once with no improvement whatsoever. There was a little bit of a halo effect in the xray at the tip of the root. She had thought it might be an overfill problem. I am going in tomorrow and I am afraid they are going to tell me that the front tooth will have to be extracted and an implant put in. Did the root canal cause the fracture? Am I now liable for costs to repair this damage? Also what is the procedure/recovery etc for a front tooth extraction and transplant? Thank you very much.