Shear Bond Strength of Resin Luting Materials to Lithium Disilicate Ceramic: Correlation between Flexural Strength and Modulus of Elasticity

被引：4

作者：

Irie, Masao ^{[1
]}

Okada, Masahiro ^{[1
]}

Maruo, Yukinori ^{[2
]}

Nishigawa, Goro ^{[2
]}

Matsumoto, Takuya ^{[1
]}

机构：

[1] Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Biomat, 2-5-1 Shikata Cho, Okayama 7008525, Japan

[2] Okayama Univ, Dept Prosthodont, Div Dent, 2-5-1 Shikata Cho, Okayama 7008525, Japan

来源：

POLYMERS | 2023年 / 15卷 / 05期

基金：

日本学术振兴会;

关键词：

shear bond strength; flexural strength; flexural modulus of elasticity; resin luting materials; durability; dual-cure vs; self-cure; MECHANICAL-PROPERTIES; COMPOSITE CEMENTS; GAP FORMATION; CURING MODE; POLYMERIZATION; PERFORMANCE; ACTIVATION; INTEGRITY; THICKNESS; ADHESIVES;

D O I：

10.3390/polym15051128

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This study investigates the effect of the curing mode (dual-cure vs. self-cure) of resin cements (four self-adhesive and seven conventional cements) on their flexural strength and flexural modulus of elasticity, alongside their shear bond strength to lithium disilicate ceramics (LDS). The study aims to determine the relationship between the bond strength and LDS, and the flexural strength and flexural modulus of elasticity of resin cements. Twelve conventional or adhesive and self-adhesive resin cements were tested. The manufacturer's recommended pretreating agents were used where indicated. The shear bond strengths to LDS and the flexural strength and flexural modulus of elasticity of the cement were measured immediately after setting, after one day of storage in distilled water at 37 degrees C, and after 20,000 thermocycles (TC 20k). The relationship between the bond strength to LDS, flexural strength, and flexural modulus of elasticity of resin cements was investigated using a multiple linear regression analysis. For all resin cements, the shear bond strength, flexural strength, and flexural modulus of elasticity were lowest immediately after setting. A clear and significant difference between dual-curing and self-curing modes was observed in all resin cements immediately after setting, except for ResiCem EX. Regardless of the difference of the core-mode condition of all resin cements, flexural strengths were correlated with the LDS surface upon shear bond strengths (R-2 = 0.24, n = 69, p < 0.001) and the flexural modulus of elasticity was correlated with them (R-2 = 0.14, n = 69, p < 0.001). Multiple linear regression analyses revealed that the shear bond strength was 17.877 + 0.166, the flexural strength was 0.643, and the flexural modulus was (R-2 = 0.51, n = 69, p < 0.001). The flexural strength or flexural modulus of elasticity may be used to predict the bond strength of resin cements to LDS.

引用

页数：18

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