title: Evaluation of long-term soft tissue changes after bimaxillary orthognathic surgery in Class III patients.
abstract: OBJECTIVE
  To assess soft tissues in the short and long term after bimaxillary surgery in Class III patients by comparing the hard tissue changes and results between time periods.
  
  
  METHODS
  Twenty-six Class III adult patients treated with bimaxillary surgery were included in the study. Cephalometric records were taken before surgery (T1) and 5 months (T2), 1.4 years (T3), 3 years (T4), and 5 years (T5) after surgery.
  
  
  RESULTS
  There was no significant relapse in skeletal parameters. Overjet was significantly reduced between T4-T3 time intervals (P < .01). There were significant increases in Sn-HR, ULA-HR, LLA-HR, B-B(∧) (P < .01), and B(∧)-HR (P < .05) between T4-T3 time intervals. There was no significant change in the soft tissue parameters between T5-T4 time intervals.
  
  
  CONCLUSIONS
  Soft tissue vertical relapse occurs in skeletally stabile Class III bimaxillary surgery patients in the first 3 years after surgery.
authors.affiliation: a  Assistant Professor, Turgut Özal University Oral and Dental Health Care Center, Ankara, Turkey.
authors.forename: Halise
authors.initials: H
authors.lastname: Aydemir
authors.affiliation: b  Private practice, Akdeniz Oral and Dental Health Care Center, Mersin, Turkey.
authors.forename: Ruchengiz
authors.initials: R
authors.lastname: Efendiyeva
authors.affiliation: c  Professor, University of Ankara, Faculty of Dentistry, Department of Maxillofacial Surgery, Ankara, Turkey.
authors.forename: Hakan
authors.initials: H
authors.lastname: Karasu
authors.affiliation: d  Professor, University of Ankara, Faculty of Dentistry, Department of Orthodontics, Ankara, Turkey.
authors.forename: Ufuk
authors.initials: U
authors.lastname: Toygar-Memikoğlu
mesh_terms: D000293:Adolescent; D000328:Adult; D059925:Anatomic Landmarks / Q000033:anatomy & histology; D002508:Cephalometry / Q000379:methods; D005145:Face / Q000033:anatomy & histology*; D005147:Facial Bones / Q000033:anatomy & histology; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008313:Malocclusion, Angle Class III / Q000601:surgery*; D008437:Maxilla / Q000601:surgery; D056948:Orthognathic Surgical Procedures / Q000379:methods*; D019340:Osteotomy, Le Fort / Q000379:methods; D059229:Osteotomy, Sagittal Split Ramus / Q000379:methods; D012008:Recurrence; D055815:Young Adult
keywords: Bimaxillary surgery; Class III; Soft tissue