Endodonitic (root canal) treatment is successful in most cases. However, in some cases the tooth that was treated with a root canal might not heal as it should have or there may be some post surgical complications that can jeopardize the tooth. If this occurs, your endodontist might have to do an endondontic retreatment. An endodontic, or root canal retreatment is almost the same as the initial root canal therapy. However, instead of removing the pulp, your endodontist will remove the old root canal filling material and will then reinstitute the root canal therapy.
An apicoectomy may become necessary if all other previous methods fail to heal properly. During an apicoectomy, the bone and inflamed tissue are exposed by an incision made in the gum tissue. The inflamed tissue and the infected root tip are both removed by your endodontist. A root-end filling will then be placed over the affected area, to again prevent further infection of the root. The gum is then sutured and the bone naturally heals over a time period of a few months.