Orthodontics is a dental speciality that focuses on the correction of misaligned teeth and jaws using braces, aligners, and other orthodontic devices. Treatment can be cosmetic, to improve a person's appearance, but it often aims to improve oral function too, including better chewing and speech, and help protect teeth from damage and decay.

The orthodontist may use a range of medical dental devices, including headgear, plates, and braces.