title: Nonsurgical treatment of a skeletal vertical discrepancy with a significant open bite.
abstract: A case report of a patient who exhibited with a skeletal Class II, dental Class I malocclusion with maxillary right first molar to maxillary left first molar open bite. A hyperdivergent cranial base/mandibular plane angle is presented. Maxillary-mandibular arch form and arch width discrepancies, a low labial frenum, multiple diastemas, and mandibular dental protrusion were present. A history of thumb sucking was evident. Active tongue thrusting and inadequate tongue posture at the time of treatment were documented. The patient was treated without extraction with an 0.022-inch edgewise appliance. A modified tongue crib with a palatal button was used until stable bite closure was achieved. Ideal overbite and overjet relationships were established. A Class 1 molar and canine occlusion was obtained. The transverse discrepancy was solved, and excellent dentofacial esthetics were achieved. Posttreatment records for 38 months document the stability of the treatment result. [This case report was presented to the American Board of Orthodontics in partial fulfillment of the requirements of the certification process conducted by the Board.
authors.forename: J O
authors.initials: JO
authors.lastname: de Cuebas
mesh_terms: D002508:Cephalometry / Q000706:statistics & numerical data; D002648:Child; D005260:Female; D006801:Humans; D008311:Malocclusion, Angle Class I / Q000175:diagnosis / Q000628:therapy*; D003765:Models, Dental; D018704:Orthodontic Retainers; D009971:Orthodontics, Corrective / Q000379:methods; D011379:Prognosis; D014716:Vertical Dimension