Orthodontics is a dentistry specialty that addresses the diagnosis, prevention, and correction of malpositioned teeth and jaws, and misaligned bite patterns. It may also address the modification of facial growth, known as Dentofacial Orthopedics. Abnormal alignment of the teeth and jaws is very common. Orthodontic treatment is a way of straightening or moving teeth, to improve the appearance of the teeth and how they work. It can also help to look after the long-term health of your teeth, gums, and jaw joints, by spreading the biting pressure over all your teeth. Abnormal alignment of the teeth and jaws is very common. Nearly 50% of the developed world's population, according to the American Association of Orthodontics, has malocclusion severe enough to benefit from orthodontic treatment.