A: An orthodontist is a “SPECIALIST” in dentistry. After graduating from Dental School and becoming a dentist, they must apply, be accepted and graduate from a university accredited by the American Dental Association. This is two or more years of specialized post-doctoral training in the art and science of moving teeth. Only orthodontists are uniquely qualified to perform orthodontic services.Membership in the American Association of Orthodontists guarantees they specialize in orthodontics.