An Endodontist is a dentist who specializes in the diagnosis and treatment of diseases and injuries of the pulp and periapical tissues of the teeth.

Endodontists perform a variety of procedures including root canal therapy, endodontic retreatment, surgery, treating cracked teeth, and treating dental trauma. If the pulp (containing nerves, arterioles, venules, lymphatic tissue, and fibrous tissue) becomes diseased or injured, endodontic treatment is required to save the tooth.