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采用自制力仪测定７７０例正常人牙齿的力值，其中男性３６５人，女性４０５人，年龄１３～４９岁。结果显示：力值是由切牙区向磨牙区逐渐增大；男性储力值大于女性力值，两者之间有显著性差异（Ｐ＜０．０１），且男性力值从１３～１６岁随年龄的增长而逐渐增大，最大力值在切牙为４３．３ｋｇ，双尖牙为９９．１１ｋｇ，第１磨牙为１２０．６６ｋｇ。
Self-restraint instrument used to measure the strength of 770 normal teeth, including 365 males and 405 females, aged 13 to 49 years. The results showed that the force value increased gradually from the incisor area to the molar area, and the value of men's reserve value was higher than that of female, with a significant difference (P <0.01) Years old increased with age, the maximum force value was 43.3kg for incisor, 99.11kg for bicuspid, and 120.66kg for first molar.