title: Mandibular distraction osteogenesis in a skeletal Class II patient with obstructive sleep apnea.
abstract: We report the orthodontic treatment of a 31-year-old man with severe skeletal Class II malocclusion and documented obstructive sleep apnea (OSA). He had a retrognathic profile with an overbite of 4 mm and an overjet of 14 mm. Mandibular distraction osteogenesis was performed to lengthen the small, retruded mandible by 18 mm and improve the symptoms of OSA. Orthodontic treatment after the mandibular distraction osteogenesis procedure lasted 3 years 1 month. An acceptable occlusion was obtained, and the patient's OSA was significantly alleviated. Although the patient was satisfied with the treatment, condylar resorption was observed. The relevance of condylar resorption with reference to a comprehensive evaluation of the treatment outcome is discussed.
authors.affiliation: Graduate School, Tokyo Medical and Dental University, Tokyo, Japan. t-hamada.mort@tmd.ac.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Hamada
authors.forename: Takashi
authors.initials: T
authors.lastname: Ono
authors.forename: Ryo
authors.initials: R
authors.lastname: Otsuka
authors.forename: Ei-ichi
authors.initials: E
authors.lastname: Honda
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Harada
authors.forename: Tohru
authors.initials: T
authors.lastname: Kurabayashi
authors.forename: Kimie
authors.initials: K
authors.lastname: Ohyama
mesh_terms: D000328:Adult; D002508:Cephalometry; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000000981:diagnostic imaging / Q000601:surgery*; D008334:Mandible / Q000000981:diagnostic imaging / Q000601:surgery*; D019186:Mandibular Advancement / Q000379:methods*; D019857:Osteogenesis, Distraction / Q000379:methods*; D011859:Radiography; D063173:Retrognathia / Q000150:complications / Q000601:surgery*; D020181:Sleep Apnea, Obstructive / Q000150:complications / Q000601:surgery*; D012913:Snoring / Q000209:etiology; D011795:Surveys and Questionnaires; D013705:Temporomandibular Joint Disorders / Q000628:therapy; D016896:Treatment Outcome