Endodontics is a specialty of dentistry, that deals with the tooth pulp and tissues surrounding the root of a tooth. The pulp (containing nerves, arterioles and venules as well as lymphatic tissue and fibrous tissue) can become diseased or injured and thus is unable to repair itself. The pulp then dies and endodontic treatment is required. The word comes from the Greek words endo meaning inside and odonsmeaning tooth. Literally taken, it means study of that which is “inside the tooth”.