title: Skeletal and dental relapses after skeletal class III deformity correction surgery: single-jaw versus double-jaw procedures.
abstract: OBJECTIVE
  In this prospective comparative study, we looked at the postoperative dental and skeletal relapses in patients undergoing orthognathic surgery for skeletal class III deformity. The surgical interventions were single-jaw versus double-jaw procedures.
  
  
  METHODS
  Twenty-four adult patients with skeletal class III deformity presented with functional and esthetic problems. Patients were randomized to receive single- or double-jaw corrective surgery. The assessment of outcome was by lateral cephalograms taken at different intervals and postoperative complications.
  
  
  RESULTS
  At 1 year after surgery, no significant correlation was identified between surgical advancement and relapse regarding maxillary stability. The single-jaw procedure cohort had a significantly greater horizontal mandibular skeletal relapse. No differences were noted when examining the mandibular vertical stability. None of the patients reported any acute local neurology.
  
  
  CONCLUSIONS
  Single-jaw procedure may lead to less stability, leading to skeletal relapse, than double-jaw procedure. A higher evidence-based study and larger cohort is required to prove this.
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Dentistry, Al-Yarmouk University College, Baghdad, Iraq. raedmaxfax@yahoo.com
authors.forename: Raed
authors.initials: R
authors.lastname: Al-Delayme
authors.forename: Moutaz
authors.initials: M
authors.lastname: Al-Khen
authors.forename: Zaid
authors.initials: Z
authors.lastname: Hamdoon
authors.forename: Waseem
authors.initials: W
authors.lastname: Jerjes
mesh_terms: D000328:Adult; D002508:Cephalometry / Q000379:methods; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000473:pathology; D008297:Male; D008313:Malocclusion, Angle Class III / Q000601:surgery*; D008334:Mandible / Q000601:surgery; D008437:Maxilla / Q000601:surgery; D009971:Orthodontics, Corrective; D056948:Orthognathic Surgical Procedures / Q000379:methods*; D019340:Osteotomy, Le Fort / Q000379:methods; D059229:Osteotomy, Sagittal Split Ramus / Q000379:methods; D010781:Photography / Q000379:methods; D011183:Postoperative Complications; D011446:Prospective Studies; D012008:Recurrence; D012399:Rotation; D016896:Treatment Outcome; D014716:Vertical Dimension; D055815:Young Adult