Similar to other medical or dental procedures, there is a possibility that a tooth that has undergone endodontic therapy may not heal as expected and may become infected or inflamed months or even years after treatment. This root canal failure may be due to various factors such as complicated tooth anatomy resulting in untreated canals or delayed placement of permanent restorations leading to salivary contamination, new decay, or tooth fracture. However, in many cases, it is still possible to save the tooth, and successful root canal retreatment may be an effective option. Our board-certified endodontist, Dr. Edlund, possesses the experience necessary to diagnose and retreat complex endodontic cases ensuring the patient receives the best possible outcome.