title: Condylar repositioning in bilateral sagittal split ramus osteotomy with centric relation bite.
abstract: OBJECTIVE
  Changes in the condylar position after bilateral sagittal split ramus osteotomy (BSSO) can cause many complications, such as condylar dysfunction and increased risk of relapse. This study evaluated a simple approach for condylar repositioning in BSSO as a method to rapidly obtain the patient's centric relation (CR) bite position without prefabricated equipment.
  
  
  METHODS
  The study subjects included 9 patients (5 men and 4 women; mean age, 23.7 years) who underwent BSSO in the Department of Oral and Maxillofacial Surgery in Hallym University hospital between December 2009 and March 2012. We performed BSSO with the condylar-repositioning method according to the patient's CR bite.
  
  
  RESULTS
  Measurements of changes in the condylar position via radiographic images (lateral cephalometric radiographs) did not indicate significant differences after surgery (P < 0.05). In surveys of temporomandibular joint symptoms, the scores for categories (sound, pain, mouth opening limitation) also did not show any increases after surgery.
  
  
  CONCLUSIONS
  Within a standard operating time, the condyle was effectively repositioned using the condylar-repositioning method described in this study. These results indicate this new repositioning method is simple and eliminates the need for any additional device.
authors.affiliation: From the Department of Oral and Maxillofacial Surgery, School of Medicine, Hallym University, Anyang, South Korea.
authors.forename: Seung-Min
authors.initials: SM
authors.lastname: Oh
authors.forename: Chang-Yoen
authors.initials: CY
authors.lastname: Lee
authors.forename: Ju-Won
authors.initials: JW
authors.lastname: Kim
authors.forename: Chang-Su
authors.initials: CS
authors.lastname: Jang
authors.forename: Jwa-Young
authors.initials: JY
authors.lastname: Kim
authors.forename: Byoung-Eun
authors.initials: BE
authors.lastname: Yang
mesh_terms: D059925:Anatomic Landmarks / Q000000981:diagnostic imaging; D016302:Centric Relation; D002508:Cephalometry / Q000379:methods; D005146:Facial Asymmetry / Q000601:surgery; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D019248:Jaw Fixation Techniques / Q000295:instrumentation*; D008297:Male; D008334:Mandible / Q000601:surgery*; D008335:Mandibular Condyle / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D059229:Osteotomy, Sagittal Split Ramus / Q000379:methods*; D011183:Postoperative Complications / Q000517:prevention & control; D011378:Prognathism / Q000601:surgery; D011859:Radiography; D013165:Splints; D013705:Temporomandibular Joint Disorders / Q000517:prevention & control; D055815:Young Adult