Orthodontics is the art of using special appliances to straighten and align the teeth and bite. Braces are the most common orthodontic treatment. In this method, arch wires are threaded through brackets that are bonded to the surface of the teeth. The arch wires act as a track and guide each tooth to its proper position. There are several types of orthodontic braces available, including the more traditional metal braces, ceramic "tooth colored" braces, and clear plastic braces.