title: Unilateral hyrax expansion of a maxillary posterior segment with surgical assistance.
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D008311:Malocclusion, Angle Class I / Q000628:therapy*; D008437:Maxilla / Q000601:surgery; D009971:Orthodontics, Corrective; D010027:Osteotomy