title: Combined maxillary and mandibular midline and mandibular ramus distraction osteogenesis for treatment of a Class II patient with implants as orthodontic anchorage.
abstract: This case report describes the treatment of a woman with severe mandibular retrusion and maxillomandibular transverse deficiency. Her malocclusion was characterized by a large overjet, a deep overbite, and a V-shaped dental arch, and she had a skeletal Class II profile. Treatement included combined maxillary and mandibular midline expansion, maxillary downward repositioning, and mandibular ramus lengthening with distraction osteogenesis with implants as orthodontic anchorage. During the postdistraction orthodontic treatment period, some skeletal relapse occurred. Implants provided absolute orthodontic anchorage to overcome the unexpected skeletal changes. Combined orthodontic treatment with implants for anchorage and distraction osteogenesis successfully expanded the maxilla and the mandible and corrected the mandibular deficiency. Two-year follow-up records show a morphologically and functionally stable result.
authors.affiliation: Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Japan.
authors.forename: Ichiro
authors.initials: I
authors.lastname: Takahashi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kawamura
authors.forename: Teruko
authors.initials: T
authors.lastname: Takano-Yamamoto
mesh_terms: D000328:Adult; D002508:Cephalometry; D015921:Dental Implants; D005260:Female; D006801:Humans; D008312:Malocclusion, Angle Class II / Q000601:surgery* / Q000628:therapy; D008334:Mandible / Q000601:surgery*; D019186:Mandibular Advancement / Q000379:methods*; D008437:Maxilla / Q000601:surgery; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D009971:Orthodontics, Corrective / Q000379:methods; D056948:Orthognathic Surgical Procedures / Q000379:methods; D019857:Osteogenesis, Distraction / Q000379:methods*
chemical_list: D015921:Dental Implants