Endodontics is the dental specialty that deals with the study and treatment of dental pulp.
Endodontics includes the study (practice) of the basic and clinical sciences of normal dental pulp, etiology, diagnosis, prevention and treatment of diseases and lesions of the dental pulp along with associated periradicular conditions.
In clinical terms, endodontics involves preserving part or all of the dental pulp in health, or eliminating all of the pulp in an irreversible disease. This includes teeth with irreversibly inflamed and infected pulpal tissue. Not only does endodontics involve treatment when a dental pulp is present, but it also includes preserving teeth that have not responded to non-surgical endodontic treatment, or for teeth that have developed new lesions, for example, when a re-treatment of the root canal is required, or periradicular surgery.
Endodontic treatment is one of the most common procedures. If the tooth pulp (containing nerves, arterioles, veins, lymph tissue, and fibrous tissue) becomes ill or injured, endodontic treatment is needed to save the tooth.