Endodontists are dentists who specialize in treating diseases of the dental pulp and supporting structures, diagnosing facial pain and related problems, and treating traumatic dental injuries. All dentists are trained in diagnosis and endodontic therapy; however, some teeth can be especially difficult to diagnose and treat. That’s why you have been referred to an endodontic specialist. In addition to dental school, endodontists receive at least two additional years of advanced education in this kind of treatment. They study root canal techniques and procedures in greater depth for diagnosis and treatment of more difficult cases.