정상교합자의 골격 변이의 분류
Classification of the skeletal variation in the normal occlusion
김자영, 오승재, 심재면, 장영일,
소속 상세정보
김자영 ( ) - 서울대학교 치과대학 교정학교실
오승재 ( ) - 서울대학교 치과대학 교정학교실
심재면 ( ) - 서울대학교 치과대학 교정학교실
장영일 ( ) - 서울대학교 치과대학 교정학교실
KMID : 0361920030330030141
Abstract
The purposes of this study were to classify the anteroposterior and vertical skeletal pattern of normal occlusion samples into specific types with factor and hierarchical cluster analysis, and to evaluate the range and limit of skeletal relationships that permit the establishment of normal occlusion via natural dentoalveolar compensation.
Lateral cephalograms of 294 normal occlusion samples were measured, as selected from 15,836 persons through a community dental health survey who cooperated in record taking. Using a factor analysis, two factors representing anteroposterior and vertical skeletal relationships were extracted from 18 skeletal measurements. Then cluster analysis classified the skeletal patterns into nine types. The means and the standard deviations of 8 anteroposterior skeletal measurements and 10 vertical skeletal measurements were determined and comparisons of these measurements among the types were performed. ´;´he results obtained in this study showed that the range of normal occlusion included very diverse anteroposterior and vertical skeletal re ationships.
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키워드
Skeletal Variation;Skeletal Pattern;Cluster Analysis;Normal Occlusion;골격 변이;측모 골격형;군접분석;정상교합
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