골격성 Ⅲ급 부정교합자의 악골 부조화가 구치부 치성보상에 미치는 영향
The relationship between posterior dental compensation and skeletal discrepancy in class Ⅲ malocclusion
성지현, 김성식, 손홍주,
소속 상세정보
성지현 ( ) - 부산대학교 치과대학 교정학교실
김성식 ( ) - 부산대학교 치과대학 교정학교실
손홍주 ( ) - 부산대학교 치과대학 교정학교실
KMID : 0361920030330010041
Abstract
This study examined the relations between degree of posterior dental compensation and skeletal discrepancy in Class III malocclusion. The pretreatment lateral cephalograms and dental casts of 87 skeletal Class III adults were selected to provide a random sampling of skeletal Class III malocclusion. Skeletal discrepancy was described with ANB angle, Wits appraisal, SN-Mn plane angle, FMA and ratios of basal arch width. Degree of posterior dental compensation was described with maxillary intermolar angle, mandibular intermolar angle and sum of intermoloar
angle. The relationships between skeletal discrepancy and degree of posterior dental compensation were analyzed with simple correlation analysis, stepwise multiple regression analysis.
The results were as follows :
I. A strong association was found between the variation in the anteroposterior measure, ANB angle and the variation of posterior dental compensation measures, sum of intenmolar angle and mandibular intermolar angle in skeletal Class III malocclusion.
2. There was no statistically significant relationship between the variation in the vertical measures and the variation
of posterior dental compensation measures in skeletal Class III malocclusion.
3. There was no statistically significant relationship between the variation in the anteroposterior and vertical
measures and degree, of basal arch width discrepancy.
키워드
골격성 Ⅲ 급 부정교합;구치부 치성보상;Skeletal class Ⅲ malocclusion;Posterior dental compensation
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