Ⅲ급 부정교합의 치료후 예후에 관한 후향적 고찰
THE RETROSPECTIVE STUDY ON THE PROGNOSIS OF CLASS Ⅲ MALOCCLUSION TREATMENTS
박진웅, 최성백, 김정완,
소속 상세정보
박진웅 ( ) - 경북대학교 치과대학 치과교정학교실
최성백 ( ) - 경북대학교 치과대학 치과교정학교실
김정완 ( ) - 경북대학교 치과대학 치과교정학교실
KMID : 0361919980280020175
Abstract
The purpose of this study was to predict the prognosis of class III malocclusion treatments. 25 patients selected for this study were devided into two groups by the stability of dentitional, skeletal and soft tissue profile improvement. One was stable group which consisted of 12 children and the other was relapse group with 13 children.
Various measurements in initial lateral cephalogram were calculated and analyzed by t-test, correlation coefficient and discriminant analysis.
The results of this study were summarized as follows
1. In both stable and relapse groups, there was not distinct difference in the antem-posterior. skeletal relationship(P<0.05).
2. As the result of wits, AB to occlusal plane angle and occlusal plane to mandubular plane angle, the occlusal plane of relapse group was stopper than that of the stable group.
3. In correlation coefficient analysis, the overjet and the occlusal plane to mandibular plane angle showed significant correlations (P<0.001, P<0.01).
4. The discrminant function was obtained from three major influential measurements; overjet, AB to occlusal plane angle and articular angle,s and´ this function could discriminate correctly in .:% of these -samples.
키워드
Ⅲ급 부정교합;치료후 예후;판별분석;판별식;Prognosis;Class Ⅲ malocclusion;Discriminant analysis
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