一步法自酸蚀粘结剂的剪切粘结强度：pH值的影响

Shear bond strength of one-step self-etch adhesives: pH influence.

作者信息

Poggio Claudio, Beltrami Riccardo, Scribante Andrea, Colombo Marco, Chiesa Marco

机构信息

Department of Operative Dentistry, University of Pavia, Pavia, Italy.

Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy.

出版信息

Dent Res J (Isfahan). 2015 May-Jun;12(3):209-14.

PMID:26005459

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4432602/

Abstract

BACKGROUND

The aim of this study was to compare the shear bond strength of four one-step self-etch adhesives with different pH values to enamel and dentin.

MATERIALS AND METHODS

In this in vitro study, 200 bovine permanent mandibular incisors were used. Four one-step self-etch adhesives with different pH values were tested both on enamel and on dentin: Adper™ Easy Bond Self-Etch Adhesive (pH = 0.8-1), Futurabond NR (pH=2), G-aenial Bond (pH = 1.5), Clearfil S(3) Bond (pH = 2.7). After adhesive systems application, a nanohybrid composite resin was inserted into the bonded surface. The specimens were placed in a universal testing machine. The shear bond strength was performed at a cross-head speed of 1 mm/min until the sample rupture. The shear bond strength values (MPa) of the different groups were compared with analysis of variance after that Kolmogorov and Smirnov tests were applied to assess normality of distributions. P < 0.05 was considered as significant.

RESULTS

In enamel shear bond strength, the highest shear bond strength values were reported with Futurabond NR (P < 0.01); however, no significant differences were found with Clearfil S(3) Bond. The others adhesive systems showed lower shear bond strength values with significant differences between them (P < 0.05). When comparing the dentin shear bond strength, the lowest shear bond strength values were reported with Clearfil S(3) Bond (P < 0.05), while there were no significant differences among the other three products (P > 0.05).

CONCLUSION

The pH values of adhesive systems did not influence significantly their shear bond strength to enamel or dentin.

摘要

背景

本研究的目的是比较四种不同pH值的一步法自酸蚀粘结剂与牙釉质和牙本质之间的剪切粘结强度。

材料与方法

在这项体外研究中，使用了200颗牛下颌恒切牙。对四种不同pH值的一步法自酸蚀粘结剂在牙釉质和牙本质上进行测试：Adper™ Easy Bond自酸蚀粘结剂（pH = 0.8 - 1）、Futurabond NR（pH = 2）、G-aenial Bond（pH = 1.5）、Clearfil S(3) Bond（pH = 2.7）。应用粘结剂系统后，将纳米混合复合树脂填入粘结表面。将样本置于万能试验机中。以1 mm/min的十字头速度进行剪切粘结强度测试，直至样本断裂。在应用柯尔莫哥洛夫和斯米尔诺夫检验评估分布正态性之后，通过方差分析比较不同组的剪切粘结强度值（MPa）。P < 0.05被视为具有显著性。

结果

在牙釉质剪切粘结强度方面，Futurabond NR的剪切粘结强度值最高（P < 0.01）；然而，Clearfil S(3) Bond未发现显著差异。其他粘结剂系统的剪切粘结强度值较低，且它们之间存在显著差异（P < 0.05）。在比较牙本质剪切粘结强度时，Clearfil S(3) Bond的剪切粘结强度值最低（P < 0.05），而其他三种产品之间无显著差异（P > 0.05）。