OK I've got a serious problem. I feel terrible and don't know what to do. I convinced my wife to have her amalgams replaced to which she accepted. During one of the removal of an amalgam the tooth cracked and exposed the nerve root. The dentist said that a root canal would have to be done. Without enough research (My major error) we went to and endodontist and he performed the root canal. She is experiencing some serious pain and I'm not much help. I should have done my homework and now I'm just realizing the horrors of root canals! She does not have a crown on the tooth yet. I'm hearing people say to pull the tooth, but then there is the problem of cavitation. Implants are not a good idea either. We could just go with the crown and make sure her immune system is strong. I'm wondering if most if not all root canals will eventually cause the body to fight an infection? But maybe that could be years down the road.