지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.6
- 수록면
- 152 - 161 (10page)
이용수
초록· 키워드
오류제보하기
Objectives: The aim of this study was to investigate the effects of advancement magnitude and changes in mandibular plane angle on the stability of mandibular advancement.Materials and Methods: This retrospective cohort study evaluated the postoperative stability of mandibular advancement in class II skeletal sub-jects who underwent bilateral sagittal split osteotomy. Radiographs taken preoperatively, immediately postoperatively and 1 year postoperatively were traced and analyzed using linear and angular measurements. To determine horizontal and vertical relapse, an X-Y coordinate system was established in which the X-axis was constructed by rotating S-N downward by 7° (approximation of the Frankfort horizontal plane) and the Y-axis was defined as a line perpendicular to the X-axis and passing through the point Sella. For certain reference points including point A, point B, pogonion and menton, the perpendicular distance between each point and both axes was determined and cephalometric variables were recorded as X and Y coordinates.Results: Twenty-five subjects were studied. A significant correlation between the amount of mandibular advancement and relapse in the B point (ver-tical and horizontal) and the pogonion point was observed (vertical and horizontal, P<0.001). Evaluation of data demonstrated a positive correlation between the mandibular plane angle (SN/ML) change and vertical relapse in the B point (P<0.05). A simple regression model demonstrated that 74% of horizontal relapse and 42.3% of vertical relapse in the B point was related to the amount of mandibular advancement. The receiver operating charac-teristic test showed that 8.5 mm mandibular advancement is related to a relapse rate of 1 mm or more in the pogonion, vertically or horizontally.Conclusion: The magnitude of mandibular advancement is a stronger surgical predictor for horizontal rather than vertical relapse at the B point. Changes in mandibular plane angle (SN/ML) during surgery affect vertical, but not horizontal relapse at the B point.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Oba Y / 2008 / Comparison of stability of mandibular segments following the sagittal split ramus osteotomy with poly-l-lactic acid (PLLA) screws and titanium screws fixation / Orthodc Waves 67:1~8
Moen K / 2011 / Dental or skeletal relapse after sagittal split osteotomy advancement surgery? Longterm follow-up / J Oral Maxillofac Surg 69:e461~e468
Pangrazio-Kulbersh V / 2001 / Stability of skeletal Class II correction with 2 surgical techniques:the sagittal split ramus osteotomy and the total mandibular subapical alveolar osteotomy / Am J Orthod Dentofacial Orthop 120:134~143
Berger JL / 2000 / Stability of bilateral sagittal split ramus osteotomy: rigid fixation versus transosseous wiring / Am J Orthod Dentofacial Orthop 118:397~403
Hoffmannová J / 2008 / Factors affecting the stability of bilateral sagittal split osteotomy of a mandible / Prague Med Rep 109:286~297
Moen K / 2011 / Dental or skeletal relapse after sagittal split osteotomy advancement surgery? Longterm follow-up / J Oral Maxillofac Surg 69:e461~e468
Pangrazio-Kulbersh V / 2001 / Stability of skeletal Class II correction with 2 surgical techniques:the sagittal split ramus osteotomy and the total mandibular subapical alveolar osteotomy / Am J Orthod Dentofacial Orthop 120:134~143
Berger JL / 2000 / Stability of bilateral sagittal split ramus osteotomy: rigid fixation versus transosseous wiring / Am J Orthod Dentofacial Orthop 118:397~403
Hoffmannová J / 2008 / Factors affecting the stability of bilateral sagittal split osteotomy of a mandible / Prague Med Rep 109:286~297
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