Protruding Lower Jaw Correction or Prognathism over development of upper or lower jaw could result in inproper jaw alignment and disproportionate teeth, this can cause an aesthetically odd look as well as can disable functionally as well. In the event that the upper jaw is over developed it could be called overbite or maxillary prognathism and when the lower jaw is expanded or over developed it is called malocclusion. The lower jaw correction surgery helps bring alignment back to the face and proper fit of teeth. It includes making an incision behind the molars and removing the lower jaw and placing it in the new position.