摘要
目的 探讨牙力与生长发育间关系。方法 牙力测力计测定儿童左右第一恒磨牙咬力 ,取 3次中的最大值。同时测定儿童体重、身高及无痛时下颌最大开口度 ;应用回归方法探讨牙力与年龄、身高 ,体重的相关性。结果 7岁至 12岁年龄组随着年龄的增长 ,牙力也随之逐渐增强 ,两者呈正相关 (P <0 .0 5 )。 11岁和 12岁年龄组中牙力男性明显高于女性 (P <0 .0 5 ) ;其他年龄组没有显著性差异 (P >0 .0 5 )。 7岁年龄组女性的开口度明显大于男性 (P <0 .0 5 ) ;儿童牙力与身高及体重无显著相关性 (P >0 .0 5 )。结论 牙力与儿童年龄呈正相关 。
Objective To study the tooth cooperative strength during the growth period of children.Methods The cooperative strength of the first molar,left and right,of the child was measured by a special instrument for measuring mastication force,taking the maximal figure in 3 measurements.Meanwhile,the body weight,height and the maximal degree of opening of the mandible in painless condition were recorded.Regression analysis was used to study their relationship.Results The tooth cooperation strength of the children from 7～12 years old increased progressively with age,they had a positive correlation .In the age groups 11- and 12-,male had higher strength than female,and there was no difference among other age groups,. Correlation between the cooperative strength and body weight or height had no significance .Conclusion Cooperative strength or mastication force has a positive correlation with age in children,but had no correlation with body weight and height.
出处
《同济大学学报（医学版）》
CAS
2003年第3期210-211,214,共3页
Journal of Tongji University(Medical Science)
