Maxillofacial Plastic and Reconstructive Surgery
- Volume 22 Issue 2
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- Pages.184-190
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- 2000
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- 2288-8101(pISSN)
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- 2288-8586(eISSN)
Comparative Study of Skeletal Relapse According to the Fixation Method after BSSRO for Mandibular Setback.
하악 시상골 절단술 후 고정 방법에 따른 회귀 성향에 대한 비교 연구
- Bae, Jin-Oh (Dept. of Oral & maxillofacial Surgery, College of Dentistry, Wonkwang University) ;
- Lee, Dong-Keun (Dept. of Oral & maxillofacial Surgery, College of Dentistry, Wonkwang University) ;
- Oh, Sung-Hwan (Dept. of Oral & maxillofacial Surgery, College of Dentistry, Wonkwang University) ;
- Sin, Ki-Young (Dept. of Oral & maxillofacial Surgery, College of Dentistry, Wonkwang University) ;
- Chang, Kwan-Sik (Dept. of Oral & maxillofacial Surgery, College of Dentistry, Wonkwang University)
- 배진오 (원광대학교 치과대학 구강악안면외과학교실) ;
- 이동근 (원광대학교 치과대학 구강악안면외과학교실) ;
- 오승환 (원광대학교 치과대학 구강악안면외과학교실) ;
- 신기영 (원광대학교 치과대학 구강악안면외과학교실) ;
- 장관식 (원광대학교 치과대학 구강악안면외과학교실)
- Published : 2000.06.30
Abstract
Objective : To compare two different methods of rigid fixation in postoperative stability after mandibular setback. Material and Methods : 28 patients with Class III malocclusion were treated by bilateral sagittal split ramus osteotomy(BSSRO) and mandibular setback were selected for this study. Group A(n=14) had the bone segments fixed with monocortical miniplate on the lateral side of the mandibular body and Group B(n=14) had three noncompressive bicortical screw inserted at the genial area through a transcutaneous approach. Cephalograms were taken preoperatively, postoperatively within 1 weeks and at a follow-up period (mean 8.9 months after surgery) and the amount of setback and postoperative change were measured. Results : Postoperative relapse between two groups was minimal in setback of the mandible. Statistical analysis showed no significant difference in postoperative relapse. Conclusion : This study suggests that both methods of skeletal fixation investigated give comparable postoperative stability and their use in mandibular setback appears to be a fairly stable clinical procedure .