Orthodontics is that branch of dentistry that specialises in the diagnosis, prevention and treatment of problems in the alignment of teeth and jaws. Common problems encountered include crooked or crowded teeth, protruding or “bucky” teeth and incorrect jaw development. The technical term for these problems is malocclusion, which literally means bad bite. Orthodontic treatment involves the design and use of corrective appliances (such as braces, plates, and functional appliances) to bring the teeth and jaws into proper alignment.