Jaw reconstruction, otherwise known as orthognathic surgery, is a method to correct or adjustment to any form of jaw irregularities. Many times, problems with the bite or the alignment of the teeth can be corrected using jaw corrective methods of dental and orthodontic treatment. This is a specialized way to correct any defects of the jaw relating to the structure. There are several ways through which these defects can occur; automobile accidents being the most common. Jaw reconstruction is a process used to correct jaw problems such as: open bites, difficulty chewing, difficulty swallowing, temporomandibular joint (TMJ) disorder pains, excessive wear of the teeth in the jaw, and receding chins. It can also be used to take care of severe orthodontic problems involving the relationship between the teeth and the jaws, including the correction of under-bites and congenital defects related to jaw development. It can also help alleviate sleep apnea, a potentially life-threatening condition.