Jaw surgery, also known as orthognathic surgery, is a procedure performed by oral and maxillofacial surgeons to correct irregularities of the jaw bones and realign the jaws and teeth to improve functionality and appearance. This surgery can address issues such as misaligned jaws, overbite, underbite, open bite, or facial imbalances. The surgery often involves collaboration with orthodontists, as pre-surgical braces are typically needed to align the teeth properly before surgery.