疏水层对V类复合树脂修复中牙本质粘结系统封闭能力的影响。

Efficacy of hydrophobic layer on sealing ability of dentin adhesive systems in class v composite resin restorations.

作者信息

Maleknejad Fatemeh, Moazzami Saied Mostafa, Baradaran Nasseri Elham, Baradaran Nasseri Ehsan

机构信息

Associate Professor, Department of Operative Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.

出版信息

J Dent Res Dent Clin Dent Prospects. 2011 Winter;5(1):5-9. doi: 10.5681/joddd.2011.002. Epub 2011 Mar 18.

DOI:10.5681/joddd.2011.002

PMID:23019500

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3429989/

Abstract

BACKGROUND AND AIMS

Adhesive permeability is hindered by application of an additional layer of hydrophobic resin, which increases its concentration within the hydrophilic layer, reduces its affinity to water, and enhances its physical prop-erties. The aim of the present study was to evaluate the effect of a hydrophobic layer on the microleakage of class V composite restorations using different adhesives.

MATERIALS AND METHODS

The adhesives including total-etch Scotchbond MP and Single Bond, and the self-etch Clearfil SE Bond and Clearfil S3 Bond were applied to 80 class V cavities in vitro on the buccal surface in CEJ and then were fol-lowed by hydrophobic resin (Margin Bond) in half of the cavities in each group (n=10). After restoration with microhybrid composite, Z100 and immersion in fuchsine, the degree of microleakage was assessed. Data were analyzed using the Krus-kal-Wallis, Man-Whitney, and Wilcoxon tests.

RESULTS

The hydrophobic layer significantly reduced the microleakage of Clearfil SE Bond and Clearfil S3 Bond only in dentin (p<0.05). There was no significant difference between enamel and dentinal margins in Clearfil S3 Bond, Clearfil SE Bond plus Margin Bond, and Clearfil S3 Bond plus Margin Bond (p>0.05).

CONCLUSION

Within the limitation of this study, only Clearfil S3 Bond could demonstrate the identical values of microle-akage in enamel and dentinal margins.

摘要

背景与目的

通过施加额外的疏水树脂层可阻碍粘结剂的渗透性，这会增加其在亲水层中的浓度，降低其对水的亲和力，并增强其物理性能。本研究的目的是评估疏水层对使用不同粘结剂的V类复合树脂修复体微渗漏的影响。

材料与方法

将包括全酸蚀的Scotchbond MP和单组分粘结剂Single Bond，以及自酸蚀的Clearfil SE Bond和Clearfil S3 Bond在内的粘结剂，在体外应用于80个位于牙釉质牙骨质界颊侧表面的V类窝洞，然后在每组一半的窝洞（n = 10）中使用疏水树脂（Margin Bond）。在用微混合复合树脂Z100修复并浸入品红后，评估微渗漏程度。使用Kruskal-Wallis、Mann-Whitney和Wilcoxon检验分析数据。

结果

疏水层仅显著降低了Clearfil SE Bond和Clearfil S3 Bond在牙本质中的微渗漏（p < 0.05）。Clearfil S3 Bond、Clearfil SE Bond加Margin Bond以及Clearfil S3 Bond加Margin Bond的釉质和牙本质边缘之间无显著差异（p > 0.05）。