Orthodontics is a specialty of dentistry that deals with the diagnosis, prevention, and correction of malpositioned teeth and jaws, and misaligned bite patterns. It can also focus on modifying facial growth, known as dentofacial orthopedics.

Abnormal alignment of the teeth and jaws is common. Treatment can take several months to a few years; it involves the use of dental braces and other appliances to slowly move the teeth and jaws around. If the malocclusion is very severe, jaw surgery may be used. Treatment is usually started before a person reaches adulthood since bones can more easily be moved around in children.