Endodontics encompasses the diagnosis and etiology of tooth pain and the treatment of the nerves inside teeth. Endodontics has evolved tremendously in the past decade and its applications have immensely improved the quality of dental treatment.

In clinical terms, endodontics involves either preserving part or all of the dental nerve in health, or removing all of the nerve with root canal therapy in irreversible disease. Root canal therapy is performed when a tooth nerve cannot be saved. The nerve and blood supply is removed from inside the tooth, the canals inside the tooth are shaped, disinfected, and then sealed off to prevent future infection. In most cases, once root canal therapy is completed the tooth will need a porcelain crown restoration to strengthen the tooth and prevent future fracture.