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Evaluation of Relapse according to Set-back Degree of the Mandible at Bilateral Sagittal Split Ramus Osteotomy in Mandibular Prognathism Patients
유경환, 김수관, 문성용, 오지수, 김생곤, 박진주, 정종원, 윤대웅, 양성수,
소속 상세정보
유경환 ( Yoo Kyung-Hwan ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
김수관 ( Kim Su-Gwan ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
문성용 ( Moon Seong-Yong ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
오지수 ( Oh Ji-Su ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
김생곤 ( Kim Sang-Gon ) - 조선대학교 치과대학 인체생물학교실
박진주 ( Park Jin-Ju ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
정종원 ( Jung Jong-Won ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
윤대웅 ( Yoon Dae-Woong ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
양성수 ( Yang Seong-Su ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
KMID : 0360120110330040319
Abstract
PURPOSE: The purpose of this study was to examine the appropriate degree of set-back of the mandible by evaluating the rate of relapse after surgery.
METHODS: Among the patients who visited our hospital from January 2002 to January 2007 and who underwent orthognathic surgery, of the patients available for follow-up observation, the rate of relapse after surgery was investigated according to the set-back degree. The patients were divided into groups by the degree of set-back, and relapse was evaluated by the radiographs performed the day after surgery, 6 months after surgery, 1 year after surgery, 2 years after surgery and 3 years after surgery.
RESULTS: In cases that exceeded the limit of posterior movement of the mandible (13 mm) or that had the wrong position of the condyle, a greater tendency toward relapse was shown.
CONCLUSION: Based on the results of this study, among the cases that required a large amount of posterior movement of the mandible, two jaw surgeries accompanied by bilateral sagittal split ramus osteotomy (BSSRO) and LeFort I osteotomy are recommended.
키워드
Complication; Orthognathic surgery; Sagittal split ramus osteotomy
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