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首页> 外文期刊>The Journal of Prosthetic Dentistry >Microtensile bond strength of resin cements to caries-affected dentin
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Microtensile bond strength of resin cements to caries-affected dentin

机译：树脂水泥与龋齿影响牙本质的微拉伸粘合强度

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Statement of problem The bonding of resin materials to caries-affected dentin, especially self-adhesive cements, remains a challenge in dentistry. Purpose The purpose of this study was to evaluate the bond strength of different resin cements to sound or caries-affected dentin at 24 hours and 6 months after the bonding procedure. Material and Methods Thirty-six human molars were used, 18 sound and 18 affected by caries. Indirect composite resin blocks (Tescera) were bonded to dentin by using 3 different resin cements: RelyX ARC, Panavia F, and RelyX Unicem. A universal testing machine was used to measure the microtensile bond strength 24 hours and 6 months after the bonding procedure. Representative specimens were analyzed with a scanning electron microscopy. The results were submitted to 3-way analysis of variance and the Fisher test (α=.05). Results The highest values of microtensile bond strength were found with RelyX ARC for both tooth conditions (P<.001). There was no difference between RelyX Unicem and Panavia F (P>.05). There was no difference between caries-affected and sound dentin (P=.89). Conclusions Caries did not influence the bonding strength of resin cements to dentin.
机译：问题陈述将树脂材料粘结到受龋齿影响的牙本质上，尤其是自粘水泥，仍然是牙科领域的挑战。目的这项研究的目的是评估粘合过程后24小时和6个月，不同树脂胶粘剂对完好或龋齿的牙本质的粘合强度。材料和方法使用36颗人类磨牙，18颗声音，18颗受龋齿影响。通过使用3种不同的树脂胶粘剂将间接复合树脂块（Tescera）粘结到牙本质上：RelyX ARC，Panavia F和RelyX Unicem。在粘合过程之后24小时和6个月，使用通用测试机测量微拉伸粘合强度。用扫描电子显微镜分析代表性样品。将结果提交给方差的三向分析和Fisher检验（α= .05）。结果RelyX ARC在两种牙齿条件下均具有最高的微拉伸粘结强度值（P <.001）。 RelyX Unicem和Panavia F之间没有差异（P> .05）。受龋影响的牙本质和有声牙本质之间没有差异（P = .89）。结论龋牙不会影响树脂水泥与牙本质的粘结强度。

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