摘要
报道了人牙骨质弹性模量的测定,测得100个试件的弹性模量的平均值为E=2398±0455GPa· 制作试件的人牙包括切牙、尖牙、双尖牙和磨牙· 在AG_10TA型电子万能材料试验机上完成测试· 用数理统计方法论证了测试数据服从正态分布· 根据牙本质与牙骨质的弹性模量差异很大,阐述了:1对根尖牙骨质分布较多作了力学分析;
In this paper, the elastic modulus measuring of human cementum is studied. The average value of the elastic modulus measured from 100 specimens is E=2 398±0 455 GPa. The specimens were made from incisors, canines, bicuspids, and molars. The testing was done on type AG—10TA electronic_mechanical universal material testing machine. It was verified by mathematical statistics that the probability distribution of measured data obeys normal distribution. By the great difference in elastic moduli between cementum and dentin it is explained that 1 why more cementum grows at the root apexes;2 the behavior of cementum must be taken into consideration when the stress analysis for teeth is carried out.
出处
《应用数学和力学》
EI
CSCD
北大核心
1999年第10期1057-1064,共8页
Applied Mathematics and Mechanics
基金
国家自然科学基金!资助项目 ( 39170 2 41)
