Correlations among bending test methods for dental hard resins

被引：12

作者：

Miura, Daisuke ^{[1
]}

Miyasaka, Taira ^{[1
]}

Aoki, Harurni ^{[1
]}

Aoyagi, Yusuke ^{[1
]}

Ishida, Yoshiki ^{[1
,2
]}

机构：

[1] Nippon Dent Univ Tokyo, Dept Dent Mat Sci, Sch Life Dent Tokyo, Chiyoda Ku, 1-9-20 Fujimi, Tokyo 1028159, Japan

[2] Nippon Dent Univ Tokyo, Dept Life Dent, Sch Life Dent Tokyo, Chiyoda Ku, 1-9-20 Fujimi, Tokyo 1028159, Japan

来源：

DENTAL MATERIALS JOURNAL | 2017年 / 36卷 / 04期

关键词：

Bending test; Biaxial flexural strength; Weibull analysis; Three-point bending test; Four-point bending test; CAD/CAM COMPOSITE RESIN; FLEXURAL STRENGTH; PARAMETERS; RESISTANCE; BLOCKS; SYSTEM;

D O I：

10.4012/dmj.2016-304

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Three types of bending tests the 3-point bending test, 4-point bending test and biaxial flexural test were performed to examine the correlations among the testing methods for dental hard resins (HRs). The results for 5 HRs showed that the bending strengths in descending order were: biaxial flexural strength>3-point bending strength>4-point bending strength. Regression analysis of the test methods indicated that the coefficients of determination were large for all test methods; the largest was for the combination of the 4-point bending test and biaxial flexural tests. The Weibull moduli ranged from 5.42 to 10.61, and a similar descending-order trend was found in the Weibull characteristic strength (S-0) of the test methods. The biaxial flexural test method is thus a valid test of the flexural strength of dental hard resins.

引用

页码：491 / 496

页数：6

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