Orthodontics is the art of using appliances to straighten and align teeth. Most commonly it involves the use of braces to move teeth into their proper position. In this method, brackets are bonded to the teeth and arch wires are threaded through the brackets. The arch wires act as a track, and guide each tooth to its proper position. There are several types of orthodontic braces available to consumers, including the more traditional metal braces, ceramic "tooth coloured" braces, as well as clear plastic braces.

Also available now is the Invisalign system that uses a series of trays to straighten the teeth.