INDEPENDENT MOVEMENT OF CUSPS DURING OCCLUSAL LOADING

被引：55

作者：

SAKAGUCHI, RL

BRUST, EW

CROSS, M

DELONG, R

DOUGLAS, WH

机构：

[1] Biomaterials Research Center University, Minnesota School of Dentistry, SE Minneapolis, MN 55455

[2] Dept. of Orthodontics University, Michigan School of Dentistry Ann Arbor

来源：

DENTAL MATERIALS | 1991年 / 7卷 / 03期

关键词：

D O I：

10.1016/0109-5641(91)90041-V

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

An integrated experimental and theoretical approach is proposed for the evaluation of stress within a natural tooth during bruxing. A physical model was developed that used strain gauges bonded to the buccal and lingual heights of contour of extracted, intact maxillary premolar teeth for the validation of a two-dimensional finite element model of a natural, intact maxillary premolar tooth. Results from the finite element model were in good agreement with the experimental results. The tooth exhibits "cuspal independence", which describes the relative independence of the loaded cusp from the remaining cusp that is not loaded. In other words, the control cusp does not demonstrate significant strain when the adjacent cusp is loaded. The overall stiffness of the tooth does not appear to be significantly affected by separation of the enamel of the two cusps and appears to be primarily a function of the dentin.

引用

页码：186 / 190

页数：5

共 15 条

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