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군집분석을 통한 한국인 성인 골격성 제 II급 부정교합의 아분류
Subclassification of Skeletal Class II Malocclusion of Korean Adults Using Cluster Analysis

대한구순구개열학회지 2011년 14권 1호 p.1 ~ 18

안광석, 백형선, 김경호, 김백일, 이기준,

소속 상세정보

안광석 ( Ahn Kwang-Seok ) - 연세대학교 치과대학 교정학교실
백형선 ( Baik Hyoung-Seon ) - 연세대학교 치과대학 교정학교실
김경호 ( Kim Kyung-Ho ) - 연세대학교 치과대학 교정학교실
김백일 ( Kim Baek-Il ) - 연세대학교 치과대학 예방치과학교실
이기준 ( Lee Kee-Joon ) - 연세대학교 치과대학 교정학교실

KMID : 0952820110140010001

Abstract

Skeletal malocclusion is the result of abnormal dimension and alignment of each skeletal component. Understanding on these mechanisms may help to elucidate the etiology of skeletal malocclusion and to establish population-oriented treatment plans. Attempts to subdivide the Angle’s classification have been performed for Class III malocclusion, while few studies have been conducted for Class II malocclusion despite recent growing interests in Class II malocclusion. 200 adults (88 male, 112 female) with skeletal Class II malocclusion were collected and subdivided using cluster analysis, using the measurements representing the dimension and the alignment of each facial skeletal component. The properties of each cluster was grouped within the subjects and a comparison between the subjects and the control group (38 male, 35 female) with normal occlusion was performed. Six clusters were finally recognized in each male and female groups. The clusters in both genders were mainly characterized by the cranial base alignment, dimension of the posterior cranial base, dimension of the mandibular ramus and the degree of mandibular rotation. The results implicate that active treatment of mandible rather than the nasomaxillary complex may be primarily considered for the correction of Korean Class II skeletal pattern.