Oral Surgery Oral & Maxillofacial Surgery Orthognathic Surgery Facial Trauma Sinus Lift Procedure Wisdom Teeth Orthognathic Surgery Orthognathic surgery is surgery performed on the bones of the jaws to change their positions. Orthognathic surgery is corrective facial surgery where deformities of the jaw exist. It may be indicated for functional, cosmetic, or health reasons. It is surgery commonly done on the jaws in conjunction with orthodontic treatment, which straightens the teeth.