ELASTIC MODULUS OF HUMAN CEMENTUM  

作　　者：叶德临 倪海鹰 龚一康 陈星 

机构地区：[1]SichuanUniv,BiomechResLab,Chengdu610065,PeoplesRChina [2]SichuanUniv,DeptPlastEngn,Chengdu610065,PeoplesRChina [3]FourthPeoplesHospChengdu,Chengdu610036,PeoplesRChina [4]SecondPeoplesHospChengdu,Chengdu610017,PeoplesRChina

出　　处：《Applied Mathematics and Mechanics(English Edition)》1999年第10期1134-1141,共8页应用数学和力学（英文版）

摘　　要：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.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.

关 键 词：human cementum elastic modulus normal distribution 

分 类 号：R318.01[医药卫生—生物医学工程]