Jaw Surgery

The face is comprised of numerous bones which provide support for the overlying skin, muscle, and fat, as well as the teeth.  Two of the largest facial bones are the upper and lower jaw bones. The upper jaw bone is termed the Maxilla.  The lower jaw bone is termed the Mandible. Portions of the maxilla and mandible house, or support, the teeth.

Normally, the maxilla and mandible are situated in a specific position relative to the base of the skull.  This normal positioning allows for a balanced appearance of the face, as well as for a normal bite (occlusion) through the proper alignment of the teeth.

Due to genetic differences and abnormalities in growth patterns, however, either the maxilla, the mandible, or both, can be out of alignment with the skull base.  When this occurs, the teeth are unable to bite together properly, and the face appears to be out of harmony.

An orthodontist (dentist who specializes in braces) can move teeth with braces, but the amount and direction of tooth movement is limited by the position of the maxilla and mandible.  Therefore, at a certain point, it becomes necessary to move the maxilla, mandible, or both in order to create the optimum occlusion and facial proportions. This is achieved through orthognathic, or corrective jaw surgery.