[Orthodontic implications in the correction of the transverse dimension in orthognathic surgery].

Transverse skeletal discrepancies are treated in skeletally mature patients with an association of orthodontics and surgical procedures. The orthodontics procedures used depend on the type of surgical maxillary expansion performed. Orthodontics procedures performed before surgery are designed around the analysis of frontal asymmetry. Indications and proper treatment strategy for surgically-assisted maxillary expansion, or for Lefort I osteotomy depend on the magnitude of the transverse deficiency. The orthodontics implications of facial asymmetry remains one of the specific points requiring special care before and after surgery. Long length orthodontics stabilization is required after surgically-assisted rapid maxillary expansion to limit transversal relapse by use of a rigid fixation or another auxiliary stabilizing arch wire.