title: A retrospective study of advancement genioplasty.
abstract: This study examined the immediate and postsurgical changes in the hard and soft tissues of the chin after advancement genioplasty by means of oblique osteotomy of the mandibular symphysis. Twenty-three patients who had undergone this procedure were evaluated cephalometrically for up to 6 months after surgery. The results indicated that the position of the genial segment is stable after advancement. There was a good correlation between the amount of hard versus soft tissue change with surgery in the horizontal direction but a poor correlation in the vertical plane. There was, however, a great amount of variability from one patient to the next in most of the variables examined. Follow-up results were generally very stable.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University of Michigan, Ann Arbor.
authors.forename: H S
authors.initials: HS
authors.lastname: Park
authors.forename: E
authors.initials: E
authors.lastname: Ellis
authors.forename: R J
authors.initials: RJ
authors.lastname: Fonseca
authors.forename: S T
authors.initials: ST
authors.lastname: Reynolds
authors.forename: K H
authors.initials: KH
authors.lastname: Mayo
mesh_terms: D000293:Adolescent; D000328:Adult; D002508:Cephalometry; D002680:Chin / Q000033:anatomy & histology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000033:anatomy & histology / Q000601:surgery; D010027:Osteotomy / Q000379:methods*; D011379:Prognosis; D012189:Retrospective Studies; D014716:Vertical Dimension