| 人牙骨质的弹性模量 |
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| 引用本文： | 叶德临,倪海鹰,龚一康,陈星.人牙骨质的弹性模量[J].应用数学和力学,1999,20(10):1057-1064. |
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| 作者姓名： | 叶德临 倪海鹰 龚一康 陈星 |
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| 作者单位： | 1.四川大学生物力学研究室, 成都 610065; |
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| 基金项目： | 国家自然科学基金!资助项目 ( 39170 2 41) |
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| 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±0.455GPa.制作试件的人牙包括切牙、尖牙、双尖牙和磨牙.在AG10TA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;2牙的应力分析必须考虑牙骨质的性质.
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| 关 键 词： | 人牙骨质 弹性模量 正态分布 |
| 收稿时间： | 1998-01-16 |
| 修稿时间： | 1998-01-16 |
Elastic Modulus of Human Cementum |
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| Ye Delin,Ni Haiying,Gong Yikang,Chen Xing.Elastic Modulus of Human Cementum[J].Applied Mathematics and Mechanics,1999,20(10):1057-1064. |
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| Authors: | Ye Delin Ni Haiying Gong Yikang Chen Xing |
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| Institution: | 1.Biomechanical Research Laboratory, Sichuan University, Changdu 610065, P R China;2.Department of Plastics Engineering, Sichuan University, Chengdu 610065, P R China;3.The Fourth People's Hospital of Chengdu, Chengdu 610036, P R China;4.4 The Second People's Hospital of Chengdu, Chengdu 610017, P R China |
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| Abstract: | 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. |
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| Keywords: | human cementum elastic modulus normal distribution |
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