title: Mandibular midline distraction osteogenesis: a complex case with severe crowding.
abstract: This article reports on a patient with severe maxillary and mandibular crowding treated by both expansion and extraction treatment. Two surgical procedures, surgically assisted palatal expansion and a mandibular midline osteotomy, were performed in sequence for skeletal expansion. A hybrid appliance, consisting of a Hyrax screw and 2 miniplates, was used in the mandible. Since expansion was not enough for relief of the crowding, 3 premolars were later extracted. The patient's final occlusion was satisfactory, but genioplasty may be desired in the future.
authors.affiliation: Orthodontic Department, School of Dentistry, Hamedan University, Hamedan, Iran. amir.miresmaeili@aaomembers.org
authors.forename: Amirfarhang
authors.initials: A
authors.lastname: Miresmaeili
authors.forename: Mohammad
authors.initials: M
authors.lastname: Zandi
authors.forename: Nasrin
authors.initials: N
authors.lastname: Farhadian
mesh_terms: D000293:Adolescent; D001641:Bicuspid / Q000601:surgery; D001860:Bone Plates; D003724:Dental Arch / Q000601:surgery; D005146:Facial Asymmetry / Q000601:surgery; D005260:Female; D006801:Humans; D008310:Malocclusion / Q000601:surgery*; D008334:Mandible / Q000601:surgery*; D008437:Maxilla / Q000601:surgery; D016382:Orthodontic Appliance Design; D009967:Orthodontic Appliances; D019857:Osteogenesis, Distraction / Q000379:methods*; D010155:Palatal Expansion Technique / Q000295:instrumentation; D010347:Patient Care Planning; D012690:Serial Extraction; D016896:Treatment Outcome