학령 전 어린이의 교합력과 구순 폐쇄력
Bite Force and Lip Closing Force Measurement in Preschool Children
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초록
본 연구는 학령 전 어린이의 정상적인 교합력과 구순 폐쇄력을 알아보기 위한 목적으로 수행되었다. 3-6세의 어린이 98명을 대상으로 하였고, 60명의 성인을 대조군으로 교합력과 구순 폐쇄력을 측정하였다. 좌우측 평균 교합력은 남아에서217.69 N, 여아에서 205.05 N이었고, 평균 구순 폐쇄력은 남아에서 4.81 N, 여아에서 4.07 N이었다. 어린이는 연령이 증가함에 따라 교합력, 구순 폐쇄력 모두 증가하는 경향을 보였고, 성별에 따른 유의한 차이는 없었다. 성인에서는 교합력과 구순 폐쇄력 모두 남성이 여성보다 유의하게 큰 값을 보였다. 교합력과 구순 폐쇄력은 연령, 신장, 체중 모두에 대해 통계학적으로 유의한 양의 상관관계를 보였다. 그리고 어린이의 교합력과 구순 폐쇄력은 유의한 양의 상관관계를 나타내었다. 이상의 연구 결과 얻어진 정상적인 교합력 및 구순 폐쇄력은, 비정상적으로 낮은 값을 보이는 어린이를 감별하여 훈련을통해 정상적인 성장을 유도하는데 사용될 수 있을 것이다.
Abstract
The aim of this study was to determine the bite force and lip closing force in preschool children and to analyze the correlation between these forces by age, height and weight, respectively. Data were obtained from 98 children (56 males, 42 females) ranging from 3 to 6 years of age. The magnitude of the bite force was measured bilaterally corresponding with the 2nd primary molars using a bite force gauge, GM10 (Nagano Keiki) and the force of lip closure was measured using LIP DE CUM (Cosmo Instruments). The averages of bite force for boys and girls were 217.69 N and 205.05 N, respectively. The relationship between bite force with age, height, and weight present significant positive correlation (p < 0.001, p < 0.001, and p < 0.001, respectively). The averages of lip closing force for boys and girls were 4.81 N and 4.07 N respectively. The relationship between lip closing force with age, height, and weight present significant positive correlation (p < 0.001, p < 0.001, and p < 0.001, respectively). No significant differences were observed between boys and girls (p > 0.05) in both forces. A significant correlation was observed between lip closing force and bite force (p = 0.002).
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