Introduction
The intent of this paper is to describe a procedure designed to correct mandibular prognathism by the combined efforts of oral surgery and orthodontics. This method is carried out completely within the oral cavity. It is the purpose of this procedure to improve the cosmetic appearance of the face and the function of the lower jaw.
Definition
A fullness or protrusion of the lower jaw, historically called the Hapsburg jaw, has been described in the literature by various references to cranial landmarks and facial planes1-3 and is usually called mandibular prognathism (Fig. 5A).
Problem
Patients seek relief from mandibular prognathism for three primary reasons: (1) cosmetic improvement, (2) masticatory difficulties, and (3) pain and temporomandibular-joint difficulties.
Objectives
Solution of this problem is directed to produce (1) a more favorable facial appearance, (2) an occlusion more satisfactory for mastication, (3) relief from temporomandibular-joint difficulties if present (pain, clicking,