The stability of orthosurgical Class II treatment in growing patients

BackgroundThe orthosurgical treatment of a 13-year-old girl who had undergone two previous unsuccessful orthodontic treatments is described and discussed. She presented with a Class II, Division 1 malocclusion with marked discrepancy between maxilla and mandible, pronounced overjet, and convex profile.MethodsOrthodontic preparation was performed with a full fixed orthodontic appliance (Standard Edgewise, 0.022 × 0.028 in), followed by orthognathic surgery with mandibular advancement and genioplasty at age 14, when she was at the end of growth.ResultsAt the end of treatment, the patient exhibited a good facial appearance, a pleasant smile with coincident midlines, adequate gingival display, and correct dental relationships that remained stable after a 2-year follow-up.ConclusionsIn cases of patients with mandibular deficiency and marked discrepancy between the maxilla and mandible, orthosurgical treatment can be performed by sagittal split osteotomy and genioplasty with predictable and stable results in female patients who are in the final stage of craniofacial growth and exhibit harmonious growth.