When facial reconstruction, including procedures involving the oral cavity, is called for, a specialist is 
needed. Surgical procedures of the neck and head area are performed by a maxillofacial surgeon.
Common maxillofacial procedures include denture-related procedures and jaw surgery.
Jaw Correction
Protruding chins, crooked or buck teeth or misaligned teeth are good candidates for maxillofacial surgery.
In some people, jaws do not grow at the same rate; one may come in larger than the other, or simply not be aligned properly with other bony structures in the skull. This can cause problems other than appearance issues; an improperly aligned jaw can cause problems with the tongue and lips, and speech and chewing problems as well. Jaw surgery can move jaws into their proper place.
Other kinds of maxillofacial surgery can correct problems with upper facial features such as the nose and cheek.
In addition to correcting jaw problems surgically, orthodontic appliances such as braces may be needed to restore bite relationship and ensure continued proper alignment of the jaw. In some cases, tiny wires or small rubber bands may be needed to keep the jaws in place and promote faster healing. In other cases, small "fixation" screws or plates may need to be inserted in the jaws to facilitate easy movement of the jaws following surgery.
Denture Fatigue
People who have worn dentures for a long time can sometimes experience loss of gum tissue and even bone, mostly from the wear and tear of the appliance on the soft tissues of their mouth.
In extreme cases, maxillofacial surgery, including bone grafts, manipulation of soft tissues or even jaw realignment, may be performed to correct such problems.
