通用型黏结剂系统不同应用模式对乳牙牙釉质和牙本质大块充填型复合树脂黏结强度的影响。

Influence of Different Application Modes of a Universal Adhesive System on the Bond Strength of Bulk-Fill Composite Resin to Enamel and Dentin in Primary Teeth.

机构信息

Department of Pediatric Dentistry, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

Oral and Dental Disease Research Center, Department of Operative Dentistry, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

出版信息

Clin Exp Dent Res. 2024 Aug;10(4):e947. doi: 10.1002/cre2.947.

DOI:10.1002/cre2.947

PMID:39205379

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11358215/

Abstract

OBJECTIVES

The objective of this study was to assess how the application mode of a universal adhesive system affects the microshear bond strength (μSBS) of bulk-fill and conventional composite resins to enamel and dentin in primary teeth.

METHODS

A total of 80 caries-free primary second molars were randomly assigned to eight experimental groups (n = 10) based on the bonding substrate (enamel or dentin), the application mode of the universal adhesive system (etch and rinse [E&R], or self-etch [SE]), and the type of composite resin used (bulk-fill or conventional). After bonding the composite resin to enamel or dentin, the μSBS of the bonded composite resins was measured.

RESULTS

The mean μSBS value of bulk-fill composite resin was significantly higher than that of conventional composite resin for both enamel and dentin substrates, regardless of the application mode (p < 0.001). An interaction effect between the bonding substrate and the application mode of the adhesive system was observed, indicating a significant relationship (p < 0.001). The highest μSBS values for primary teeth enamel were achieved using the E&R mode with bulk-fill composite resin, while for dentin specimens, the SE mode with bulk-fill composite resin yielded the highest μSBS values. The μSBS of the E&R group was significantly higher than that of the SE group for enamel specimens (p < 0.001), whereas the μSBS of the SE group was significantly higher than that of the E&R group for dentin specimens (p < 0.001).

CONCLUSION

Bulk-fill composite resin demonstrated higher μSBS in comparison to conventional composite resin. The universal adhesive system exhibited superior performance in the SE mode compared to the E&R mode on primary dentin. Pre-etching the enamel before the application of the universal adhesive enhanced the μSBS to primary teeth enamel, highlighting the importance of selectively acid etching the enamel of primary teeth.

摘要

目的

本研究旨在评估通用粘结系统的应用模式如何影响乳牙釉质和牙本质的通用型粘结剂和传统型复合树脂的微拉伸粘结强度（μSBS）。

方法

根据粘结基底（釉质或牙本质）、通用粘结系统的应用模式（酸蚀冲洗[E&R]或自酸蚀[SE]）以及所使用的复合树脂类型（块状填充或传统型），将 80 颗无龋的乳牙第二磨牙随机分为 8 个实验组（n=10）。在将复合树脂粘结到釉质或牙本质后，测量粘结复合树脂的 μSBS。

结果

无论应用模式如何（p<0.001），块状填充型复合树脂的平均 μSBS 值均显著高于传统型复合树脂在釉质和牙本质基底上的值。粘结基底和粘结系统应用模式之间存在交互作用效应，表明存在显著关系（p<0.001）。乳牙釉质获得最高 μSBS 值的是使用 E&R 模式结合块状填充型复合树脂，而对于牙本质标本，使用 SE 模式结合块状填充型复合树脂则产生最高的 μSBS 值。E&R 组的 μSBS 值显著高于 SE 组（p<0.001），而 SE 组的 μSBS 值显著高于 E&R 组（p<0.001）。