Anisotropy of tensile strengths of bovine dentin regarding dentinal tubule orientation and location

被引：31

作者：

Inoue, T ^{[1
]}

Takahashi, H ^{[1
]}

Nishimura, F ^{[1
]}

机构：

[1] Tokyo Med & Dent Univ, Grad Sch, Dept Restorat Sci, Div Oral Hlth Sci,Bunkyo Ku, Tokyo 1138549, Japan

来源：

DENTAL MATERIALS JOURNAL | 2002年 / 21卷 / 01期

关键词：

dentin; tensile strength; tooth;

D O I：

10.4012/dmj.21.32

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The purpose of this study was to investigate the effects of the location and orientation of dentinal tubules in the tooth on tensile strengths of the dentin. Dumbbell-shaped specimens of 12 groups from various locations and dentinal tubule orientations were prepared. The tensile test was performed in distilled water at a temperature of 37degreesC. The tensile strengths of the parallel to the orientation were significantly greater than those of the perpendicular to the orientation; the tensile strengths of the radicular dentin were significantly greater than those of the coronal dentin. Nevertheless, in the radicular dentin, the tensile strengths of the perpendicular to dentinal tubules differ with respect to tensile forces. These results suggest that tensile strength of the dentin varies according to the location and orientation of dentinal tubules in the tooth.

引用

页码：32 / 43

页数：12

共 26 条

[1] TENSILE STRENGTH AND MODULUS OF ELASTICITY OF TOOTH STRUCTURE AND SEVERAL RESTORATIVE MATERIALS [J].