Displacement of the mandible during intermaxillary fixation after oblique sliding osteotomy. A stereometric and cephalometric radiographic study.
The X-ray stereometric method was applied for the first time to a series of consecutive patients to record operative repositioning of the mandible during oblique sliding osteotomy and postoperative displacement of the mandible during intermaxillary fixation. Comparison with cephalometric measurements was presented. The operative repositioning pattern was presented. Postoperatively a posterior displacement pattern was found with incisor extrusion in both jaws. Correlation between operative repositioning and postoperative displacement and between the two measurement methods was assessed. The stereometric method offers information on displacement on all three planes and a higher degree of accuracy. To avoid incisor extrusion, besides intermaxillary dental fiscation also skeletal fixation is recommended.
D000293:Adolescent; D000328:Adult; D002508:Cephalometry / Q000379:methods; D005260:Female; D006801:Humans; D007103:Immobilization; D008297:Male; D008310:Malocclusion / Q000601:surgery; D008334:Mandible / Q000033:anatomy & histology / Q000000981:diagnostic imaging / Q000601:surgery*; D010027:Osteotomy / Q000009:adverse effects* / Q000379:methods; D010780:Photogrammetry; D011378:Prognathism / Q000601:surgery; D011859:Radiography; D012399:Rotation