[A method for the surgical treatment of maxillary micro- and retrognathism].

The proposed method of surgical treatment of maxillary micro- and retrognathia radically differs from the known methods: osteotomy of the osseous base of the hard palate is carried out parallel to the vomer to reach the level of the first premolars by a median dissection of the mucosa and periosteum, and vertical osteotomy of the anterior portion of the vomer is carried out. Horizontal osteotomy is performed from the vestibule of the mouth. Subsequent osteotomy of the anterior and lateral surfaces of the upper jaws under mucosal periosteal "tunnels" and detachment of the maxillary tuberosities from the coracoid processes permit a full-scale displacement of the bone fragment forward to attain the position planned for it. The method was clinically used in 7 patients with good functional and esthetic results.