Prevent the infant's fall. The relation of infant's reduced occlusal force and fall.

本研究旨在探讨被认为与运动能力提高有关的闭塞是否有助于小学生平衡功能的改善。321名健康小学生（平均年龄11.16岁，标准差0.57岁）无平衡或口颌功能异常。使用EquiTest系统评估平衡能力[〇！][R]，用测力板测量由于背部和力的快速运动作为外部扰动而产生的重心摇摆。咬合力采用咬合力计GM10。数据为潜伏期（ms）、体重对称性和强度对称性。这些数据通过方差分析（ANOVA）进行比较。统计软件采用SAS统计软件包，版本8.2 （SAS Institute Inc）。因此，牙合力与潜伏期的差异有统计学意义（p<0.01）。体重对称性（p=0.4928）和强度对称性（p=0.9045）差异不显著。结果表明，咬合力与潜伏期之间存在相互作用。因此，一个人的咬合力越强，他或她的平衡指数潜伏期越好。本研究表明，较强的咬合有助于更好地预防站立姿势发生意外摇摆时的失衡和婴儿摔倒。

This study aimed to examine whether the occlusion assumed to be related to the improvement of sports ability contributes to the improvement of a balance function in elementary students.321 healthy elementary students (mean age, 11.16 ; standard deviation (SD) 0.57 years) with no equilibrium or stomatognathic function abnormalities were examined. Balancing ability was evaluated using the EquiTest system[○!R], which measures sway of the center of gravity produced by rapid movement of back and force as an external disturbance with Force Plate. For the occlusal force, OCCLUSAL FORCE-METER GM10 was used. Data was to be Latency(ms), weight symmetry, and strength symmetry. This data was compared by analysis of variance (ANOVA). For the Statistical software, the SAS statistical package and version 8.2 (SAS Institute Inc) was used.Consequently, significant difference was observed between occlusal force and Latency (p<0.01). As for weight symmetry (p=0.4928) and strength symmetry (p=0.9045), a significant difference was not found. In conclusion, an interaction between occlusal force and Latency was found. Therefore, the tendency that the stronger occlusal force a person has, the better Latency the index of the balance he or she has is seen.This study suggested that stronger occlusion contributes to better prevention of the overbalance and infant's fall when unexpected sway occurs in the standing position.