골격성 Ⅲ급 부정교합에서 수직적 안모형태에 따른 여화 설골의 위치비교
A study on the position of tongue and hyoid bone in relation to vertical facial patterns in skeletal Class Ⅲ malocclusion
우광수, 윤정현, 최종범,
소속 상세정보
우광수 ( ) - 원광대학교 치과대학 교정학교실
윤정현 ( ) - 원광대학교 치과대학 교정학교실
최종범 ( ) - 원광대학교 치과대학 교정학교실
KMID : 0361920000300050579
Abstract
The purpose of this study was to evaluate the position of tongue and hyoid bone in relation to vertical facial patterns in the adult and child.
Lateral cephalograms taken in adults(63 cases, 11.7 years in average age) and cbildren(69 cases, 22.6 years in average age) were traced and measured about position and posture of tongue and hyoid bone using the horizontal and vertical reference lines. The angle of mandibular plane to SN plane was employed to classify the samples into groups of hypodivergent and hyperdivergent.
The comparison of the tongue/hyoid bone measurements between hypodivergent group and hyperdvvergent group in the adult and child were statistically executed with Student´s t-test.
The results were as follows ;
1, The tongue height was lower in the hyperdivergent group than in hypodivergent group, and higher in children than in adults. 2. The vertical height of hyoid bone was higher in hypodivergent.group than in hyperdivergent group and also higher in children than in adults. .
3. The*anteroposterior position was of no significant difference in relation to age or vertical facial´ pattern. 4. The inclination of hyoid bone in relation to cranial base was steeper in´children than in adults.
키워드
혀;설골;수직적안모형태;Tongue;Hyoid bone;Vertical Facial pattern
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