In the United States dentists require an additional 2-3 years of training after completing their DDS/DMD degree to become an Endodontist. All the American Dental Association (ADA) accredited programs are at least 2 years in length. Once Endodontic training is complete the dentist must then pass the American Board of Endodontology exam. Successful completion of the exam will allow the dentist to be certified in Endodontology.
Endodontics is a dentistry specialty that deals with the tooth pulp and the tissues surrounding the root of the tooth. Many common procedures performed by Endodontists include: dental trauma treatment, root canal treatment, endodontic retreatment, dental surgery, and repair of cracked teeth. The most common procedure performed by an Endodontist is Root Canal Therapy. Many dentists are trained to perform Root Canal Therapy but the more complicated procedures are sent to Endodontists. Some dentists will choose not to perform Root Canal Therapy at all. Endodontists usually work in a small private practice, with a small staff. A full time Endodontist works around 32 hours per week.
Much of this information was adapted from the United States Department of Labor.