부정교합 분류에 따른 두경부 위치의 두부방사선 계측학적 연구
Cephalometric study on head posture according to the Classification of Malocclusion
황충주, 김재경, 김석현,
소속 상세정보
황충주 ( ) - 연세대학교 치과대학 교정과
김재경 ( ) - 연세대학교 치과대학 교정과
김석현 ( ) - 연세대학교 치과병원 교정과
KMID : 0361919970270020221
Abstract
It has been known that head posture may influence directly and/or indirectly the growth and development of craniofacial morphology and can also be influenced by the funtional demand of physiologic activity.
It was reported that facial morphology has close relationships with hyoid bone position and head posture. In many previous studies, Natural Head Posture(NHP) was guided, and also it was shown that NHP has high degree of reproducibility. Otherwise, There was few study about the relationship of head posture, with routine cephalometric film which is used for clinical orthodontic purpose. In this study, according to the Wits and ANB of initial cephalometric film which was taken with vertical pendulum as representative of true vertical reference line. We classified the subjects which is comprised of 60 adult female patients into Class 1, II, III (Cl I, II, f)and we tried to find out the correlation of head posture and hyoid bone position according to the classification of malocclusion.
As a result of our research, we found the followigs. -
1. In comparison of vertical position of hyoid bone relative to the cranial base. the position of hyoid bone of Cl ill was lower than that of a li.
2. In comparison of anteriorpostes or position of hyoid bone, relative to the-cervical column:´ Tl a position ´of hyoid bone of Cl Iii was more anterior than that of a IL
3. in comparison of vertical position of hyoid bone relative to mandible.
There was no significant correlation aumoug the groups of malocclusion.
4. ANB and Wits showed no significant correlation with hyoid bone position.
5. The relative extension of head, which was noted in a II, showed negative with Sum, ANB. 6. In Cl II and Cl III, Post to Ant facial height showed positive correlation with NSLJVER
키워드
두경부 위치;설골;안모형태;Head posture;Hyold bone;Facial morphology
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