자연치열에 나타나는 측방 비중심교합의 유형과 전치부 수직피개도 및 frankfort-mandibular plane angle과의 관계에 관한 연구
Other Titles
(A) study of lateral eccent1ric occlusion patterns and their relation to the incisal overbite depth and the frankfort-mandibular plane ang
Authors
정현곤
Issue Date
1980
Description
치의학과/석사
Abstract
[한글]
저자는 자연치열에서 나타나는 측방 비중심교합의 유형과 전치부 수직피개도 및 Frailk fort-mandibular plane angle(FMA)와의 관계를 살펴보기 위하여 정상교합을 갖는 연세대학교 남학생 110명을 대상으로 임상검사 및 두부 방사선 규격사진을 이용하여 연구 분석
한 결과 다음과 같은 결론을 얻었다.
1. 측방 비중심교합 유형은 상, 하악 제 1대구치의 접촉거리를 기준으로 세균으로 구별 하였으며, 유형의 발생빈도는 Canine protected occlusion 8.2%, Partial group function
occlusion이 45.9%, Group function occlusion이 45.9%였다.
2. Canine protected occlusion과 Group function occlusion의 전치부 수직피개도*** 및 FMA****의 산술평균간에 유의의 차이를 보여 주었으며, 전치부수직피개도의 산술평균은 Canine protected occlusion**+ 보다 Group function occlusion**+이 작게 나타났으며
FMA의 산술평균은 Canine protected occlusion**+ 보다 Group function occlusion**++ 이 크게 나타났었다.
3. A statistical test, Extension of the Median test, indicated that these was a
significant difference among the relation of occlusion groups and Incisal overbite
depth* and F M A+ from group to group. *X**2=7.7, d.f=2, P<0.025 +X**2=8.09,
d.f=2, P<0.025
4. The correlation coefficient between Incisal overbite depth and F M A was 0.36.
[영문]
In order to search the frequency of occurence of lateral eccentric occlusion patterns and their relation to the Incisal overbite depth and the Frankfort-mandibular plane angle (F M A) in natural dentition, clinical observation and roentgenogrnphic cephalometric study was undertaken in 110 young male students
who have normal occlusion.
The following results were obtained:
1. Occlusion patterns were categolized into three groups depending on the magnitudes of first molar contact on the working side. Percentage (frequency) of occurence of occlusion groups were: Canine protected occlusion, 8.2%, Partial group
function occlusion, 45.9%, Group function occlusion, 45.9%.
2. There was a significant difference between the arithmatic mean of Incisal overbite depth* and the means of F M A** The mean of Incisal overbite depth of Canine protected occlusion group+ was higher than that of Group function occlusion group++ and F M A of Canine protected occlusion groups was lower than that of Group function occlusion.++ *t=-2.26, d.f,=117,P<0.05 **t=12.54, d.f,=117, p<0.05 +3.47±0.26mm ++2.60±0.15mm +21.11±0.65 ++25.05±0.67
3. A statistical test, Extension of the Median test, indicated that these was a significant difference among the relation of occlusion groups and Incisal overbite depth* and F M A+ from group to group. *X**2=7.7, d.f=2, P<0.025 +X**2=8.09,
d.f=2, P<0.025
4. The correlation coefficient between Incisal overbite depth and F M A was 0.36.