title: Nasal changes after surgical correction of skeletal Class III malocclusion in Koreans.
abstract: OBJECTIVE
  To quantify the changes in the nose after bimaxillary surgery to correct skeletal Class III malocclusion and to test the hypothesis that there is no change in the nasal width following bimaxillary surgical correction of skeletal Class III when a nasal cinch is properly used.
  
  
  METHODS
  Sixty-five adult Korean skeletal Class III patients who had received maxillary advancement/impaction and mandibular set-back surgery in conjunction with an alar base cinch suture were evaluated. The anthropometric variables of the nasal region were measured directly on the soft-tissue surface before and 6 months after surgery.
  
  
  RESULTS
  After surgery, the alar width and alar base width had increased significantly (P < .001), while the nasal tip projection decreased (P < .001). The nostril morphology also showed widening (P < .001). There was a trend for females with a narrow alar width presurgically to have a larger amount of nasal widening compared with those with a broader alar width (P < .05).
  
  
  CONCLUSIONS
  There is a high probability of nasal and nostril widening after bimaxillary surgery for skeletal Class III malocclusion in Koreans despite the careful performance of alar cinch suture. Nevertheless, the authors believe that alar cinch suture was positive in limiting the nasal widening to the minimum and would consider routine application during bimaxillary surgery for skeletal Class III especially for female patients with a narrow nose who are susceptible to these changes.
authors.affiliation: Department of Orthodontics, Yongdong Severance Dental Hospital, Yonsei University, Seoul, South Korea.
authors.forename: Chooryung
authors.initials: C
authors.lastname: Chung
authors.forename: Yebert
authors.initials: Y
authors.lastname: Lee
authors.forename: Kwang-Ho
authors.initials: KH
authors.lastname: Park
authors.forename: Sun-Hyung
authors.initials: SH
authors.lastname: Park
authors.forename: Young-Chel
authors.initials: YC
authors.lastname: Park
authors.forename: Kyung-Ho
authors.initials: KH
authors.lastname: Kim
mesh_terms: D000328:Adult; D002508:Cephalometry; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007723:Korea; D008297:Male; D008313:Malocclusion, Angle Class III / Q000601:surgery*; D008334:Mandible / Q000473:pathology / Q000601:surgery; D008437:Maxilla / Q000473:pathology / Q000601:surgery; D009295:Nasal Bone / Q000473:pathology; D009666:Nose / Q000473:pathology* / Q000601:surgery; D012737:Sex Factors; D013536:Suture Techniques; D014716:Vertical Dimension