title: Assessment of skeletal stability after counterclockwise rotation of the maxillomandibular complex in patients with long-face pattern subjected to orthognathic surgery.
abstract: BACKGROUND
  The aim of this study was to evaluate the long-term skeletal stability of counterclockwise maxillomandibular complex rotation in patients undergoing orthognathic surgery for long-face pattern.
  
  
  METHODS
  This retrospective study consisted of 10 patients who underwent the procedure between September 2002 and April 2008. To assess the skeletal stability, 30 preoperative (T1), recent postoperative (T2), and late postoperative (T3) cephalometric radiographs of the 10 patients were digitized and traced. To measure the stability in the occlusal plane and mandibular plane, the cephalometric points and planes were determined 3 times.
  
  
  RESULTS
  In the long term, on average, the A-point moved 0.21 mm backward (AYT3-AYT2), the B-point moved 0.57 mm backward (BYT3-BYT2), and the posterior nasal spine moved 0.31 mm backward (PNSYT3-PNSYT2). On average, the anterior maxillary area (A-point) moved 0.14 mm downward (AXT3-AXT2), the mandible (B-point) moved 0.07 mm downward (BXT3-BXT2), and the posterior nasal spine moved approximately 0.18 mm upward (PNSXT3-PNSXT2). The occlusal plane increased by 0.75 degrees (OPT3-OPT2), and the mandibular plane increased by 0.45 degrees (MPT3-MPT2).
  
  
  CONCLUSIONS
  It was observed that the counterclockwise rotation of the maxillomandibular complex produces stable results in patients with long-face pattern undergoing orthognathic surgery.
authors: From the *Department of Oral and Maxillofacial Surgery, Santa Izabel Hospital, Salvador; †Postgraduate Program in Dentistry, Federal University of Uberlândia, Uberlândia; ‡Department of Oral and Maxillofacial Surgery, State University of Rio de Janeiro, Rio de Janeiro, Brazil.
authors: Lucas Senhorinho
authors: LS
authors: Esteves
authors: Vanessa
authors: V
authors: Castro
authors: Roberto
authors: R
authors: Prado
authors: Carolina Ávila Varginha
authors: CÁ
authors: de Moraes e Silva
authors: Célio Jesus
authors: CJ
authors: do Prado
authors: Antonio I
authors: AI
authors: Trindade Neto
mesh_terms: D000293:Adolescent; D000328:Adult; D002508:Cephalometry / Q000379:methods; D003766:Dental Occlusion; D063169:Dentofacial Deformities / Q000473:pathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D063172:Genioplasty / Q000379:methods; D006801:Humans; D008297:Male; D008334:Mandible / Q000473:pathology / Q000601:surgery*; D019186:Mandibular Advancement / Q000379:methods; D008437:Maxilla / Q000473:pathology / Q000601:surgery*; D009295:Nasal Bone / Q000473:pathology / Q000601:surgery; D056948:Orthognathic Surgical Procedures / Q000379:methods*; D019340:Osteotomy, Le Fort / Q000379:methods; D059229:Osteotomy, Sagittal Split Ramus / Q000379:methods; D012189:Retrospective Studies; D012399:Rotation; D016896:Treatment Outcome; D014716:Vertical Dimension; D055815:Young Adult