골격성 Ⅲ급 부정교합자의 악교정수술후 안정성에 영향을 미치는 요소에 관한 연구
FACTORS AFFECTING POSTSURGICAL STABILITY IN SKELETAL CLASS Ⅲ MALOCCLUSION PATIENTS
진경수, 손홍주, 김종렬,
소속 상세정보
진경수 ( ) - 부산대학교 치과대학 교정학교실
손홍주 ( ) - 부산대학교 치과대학 교정학교실
김종렬 ( ) - 부산대학교 치과대학 악안면구강외과학교실
KMID : 0361919970270010021
Abstract
The purpose of this study was to investigate the factors affecting the postsurgical mandibular stability for both one- and two-jaw surgery. 18 for one-jaw surgerys and 24 for two-jaw surgerys among skeletal class III malocclusion patients who experienced orthodontic treatment and orthognathic surgery at Pusan National University Hospital were selected Lateral cephalograms taken at the first visit, after presurgical orthodontic treatment, immediately after surgery and follow-up over 6 months, were traced. Based ANOVA, multiple linear regression analysis was completed for one-jaw surgery with postsurgical stability as the criterion and the magnitude of mandibular setback, the change of mandibular incisor height during surgery, the changes of mandibular plane angle and mandibular incisor angle during presurgical orthodontic treatment as affecting factors. Same analysis was completed for two-jaw surgery with postsurgical stability as the criterion and the-magnitude of mandibular setback as affecting factor.
The results were as follows:
1. In the one-jaw surgery cases, the magnitude of mandibular setback the change of mandibular incisor height during surgery, the changes of mandibular plane angle and mandibular incisor angle during presurgical orthodontic treatment explained the variability in postsurgical stability with a significant R´´ value of 0.84.
2. In the two jaw surgery cases, the magnitude of mandibular setback explained the variability in postsurgical stability with a significant R´ value of 0.28.
키워드
골격성 Ⅲ급 부정교합;악교정수술;안정성에 영향을 미치는 요소;Skeletal class Ⅲ malocclusion;Orthognathic Surgery;Factors affecting postsurgical stabillty
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