The orthodontist is a specialist in the diagnosis, prevention of interception and treatment of dental malocclusions and dentofacial anomalies. After having completed the 6 years of study in dentistry and completed a thesis in order to become a Doctor of Dental Surgery, to become an orthodontist, you must pass a very selective competition ( CECSMO) giving access to 4 years of part-time specialty during which the practitioner is recognized as qualified to practice orthodontics and will give him, in addition to the title of Doctor of Dental Surgery, the title of Specialist in Orthopedy-Dento-Facial.