@article{oai:kanazawa-u.repo.nii.ac.jp:00026683,
 author = {Ueki, Koichiro and Marukawa, Kohei and Shimada, Mayumi and Nakagawa, Kiyomasa and Yamamoto, Etsuhide},
 issue = {8},
 journal = {Journal of Oral and Maxillofacial Surgery},
 month = {Aug},
 note = {Purpose: To assess skeletal stability after mandibular setback surgery with and without an intermaxillary fixation (IMF) screw. Patients and Methods: The subjects were 40 patients with mandibular prognathism. The subjects underwent sagittal split ramus osteotomy with titanium plate fixation and were divided into 2 groups, 1 with and 1 without an IMF screw. A lateral cephalogram was done preoperatively, immediately after surgery, and 1 month, 3 months, and 6 months postoperatively. The 2 groups were then compared statistically. Results: In the comparison of the time-course change between the 2 groups with repeated measure analysis of variance, there were significant differences in occlusal plane (between subjects, F = 2.517; df = 4; P = .0437) and convexity (between subjects, F = 4.048; df = 4; P = .0038). However, there was no significant difference in the other measurements. Conclusion: This study suggested that in most measurements, there was no significant difference between 2 groups with and without an IMF screw in time-course skeletal change. However, use of IMF screws was helpful for orthognathic surgery as a rigid anchor of IMF. © 2007 American Association of Oral and Maxillofacial Surgeons., 金沢大学医学部附属病院歯科口腔外科},
 pages = {1562--1568},
 title = {The Use of an Intermaxillary Fixation Screw for Mandibular Setback Surgery},
 volume = {65},
 year = {2007}
}