人牙骨质的弹性模量

叶德临; 倪海鹰; 龚一康; 陈星

人牙骨质的弹性模量

1.
四川大学生物力学研究室, 成都 610065;
2.
四川大学塑料工程系, 成都 610065;
3.
成都市第四人民医院, 成都 610036;
4.
成都市第二人民医院, 成都 610017

基金项目: 国家自然科学基金资助项目(39170241)

详细信息

作者简介:
叶德临(1932~ ),男,副教授,发表论文10余篇,有些收入中国医学文摘、中国生物学文摘、美国生物学文摘、英国科学文摘等.

中图分类号: R318.01
计量
- 文章访问数: 3607
- HTML全文浏览量: 132
- PDF下载量: 701
- 被引次数: 0
出版历程
- 收稿日期: 1998-01-16
- 修回日期: 1999-05-02
- 刊出日期: 1999-10-15

Elastic Modulus of Human Cementum

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

摘要

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.
- 人牙骨质 /
- 弹性模量 /
- 正态分布
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.
- human cementum /
- elastic modulus /
- normal distribution

HTML全文

参考文献(17)

[1]	Black G V.An investigation of the physical characters of the human teeth in relation to their diseases and to practical dental operations,together with the physical character of filling materials[J].Dental Cosmos,1895,37(5):353～421.
[2]	Stanford J W,Paffenbarger G C,Kumpula J W,et al.Determination of some compressive properties of human enamel and dentin[J].The Journal of the American Dental Association,1958,57(4):487～496.
[3]	叶德临,赵云凤,董化根,等.用电阻应变测试技术测定中国人牙牙本质沿牙轴方向的压缩弹性模量[J].华西口腔医学杂志,1985,3(4):241～243.
[4]	吴瑞琪,叶德临,赵云凤,等.激光散斑干涉法测人牙弹性模量[J].中国激光,1985,12(7):424～428.
[5]	Peyton F A,Mahler D B,Hershenov B.Physical properties of dentin[J].Journal of Dental Research,1952,31(2):366～370.
[6]	Craig R G,Peyton F A.Elastic and mechanical properties of human dentin[J].Journal of Dental Research,1958,37(6):710～718.
[7]	Tyldesley W R.The mechanical properties of human enamel and dentin[J].British Dental Journal,1959,106(8):269～278.
[8]	Bowen R L,Rodriguez M S,Washington D S.Tensile strength and modulus of elasticity of tooth structure and several restorative materials[J].The Journal of the American Dental Association,1962,64(3):378～387.
[9]	Lehman M L.Tensile strength of human dentin[J].Journal of Dental Research,1967,46(1):197～201.
[10]	西村文夫,冈崎邦夫,中村英雄,野本直.人齿工ナメル质と象牙质の压缩特性[J].齿科材料．器械,1986,5(1):71～77.
[11]	叶德临,杜传诗,等.电阻应变测试技术测人牙釉质的弹性模量[J].华西口腔医学杂志,1991,9(3):207～209.
[12]	Stanford J W,Weigel K V,Paffenbarger G C,et al.Compressive properties of hard tooth tissues and some restorative materials[J].The Journal of the American Dental Association,1960,60(6):746～756.
[13]	Craig R G,Peyton F A,Johnson D W.Compressive properties of enamel,dental cements and gold[J].Journal of Dental Research,1961,40(5):936～945.
[14]	Caputo A A,Reisbick M H,Belting C M.Small specimen strain measurement by Moiré fringes[J].Journal of Dental Research,1974,53(1):98～103.
[15]	Gilmore R S,Pollack R P,Katz J L.Elastic properties of bovine dentin and enamel[J].Archives of Oral Biology,1970,15(8):787～796.
[16]	曹彬,徐永德.概率论与数理统计[M].哈尔滨:哈尔滨工业大学出版社,1993,277～280.
[17]	魏治统,叶德临,杨建民,等.用光弹性方法对固定桥基牙牙槽骨受力的实验研究[J].华西口腔医学杂志,1984,2(2):96～98.