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

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research Pub Date : 2024-08-28 DOI:10.1002/cre2.947

Ali Nozari, Maryam Pakniyat Jahromi, Farnaz Haji Abbas Oghli, Zahra Jowkar, Seyed Ahmadreza Hamidi

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引用次数: 0

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.

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通用粘合剂系统的不同应用模式对体积填充复合树脂与基牙釉质和牙本质粘结强度的影响

目的本研究旨在评估通用粘接剂系统的应用模式如何影响大量填充型和传统复合树脂与乳牙牙釉质和牙本质的微剪切粘接强度（μSBS）。方法根据粘接基质（牙釉质或牙本质）、通用粘接剂系统的应用模式（蚀刻冲洗[E&R]或自酸蚀[SE]）以及所用复合树脂的类型（填充型或传统型），将总共 80 颗无龋原生第二磨牙随机分配到 8 个实验组（n = 10）。将复合树脂粘接到牙釉质或牙本质后，测量粘接复合树脂的 μSBS 值。结果对于釉质和牙本质基底，无论采用哪种粘结方式，体填型复合树脂的平均 μSBS 值都明显高于传统复合树脂（p < 0.001）。粘接基质与粘接剂系统的应用模式之间存在交互效应，表明两者之间存在显著关系（p < 0.001）。使用E&R模式和大量填充复合树脂时，基牙釉质的μSBS值最高，而使用SE模式和大量填充复合树脂时，牙本质试样的μSBS值最高。对于釉质试样，E&R 组的μSBS 值明显高于 SE 组（p < 0.001），而对于牙本质试样，SE 组的μSBS 值明显高于 E&R 组（p < 0.001）。结论与传统复合树脂相比，团状填充复合树脂具有更高的μSBS。在初级牙本质上，通用粘合剂系统在 SE 模式下的性能优于 E&R 模式。在使用通用粘合剂之前对珐琅质进行预蚀刻可提高基牙珐琅质的μSBS，这突出了对基牙珐琅质进行选择性酸蚀刻的重要性。

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来源期刊

Clinical and Experimental Dental Research DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.30

自引率

5.60%

发文量

165

审稿时长

26 weeks

期刊介绍： Clinical and Experimental Dental Research aims to provide open access peer-reviewed publications of high scientific quality representing original clinical, diagnostic or experimental work within all disciplines and fields of oral medicine and dentistry. The scope of Clinical and Experimental Dental Research comprises original research material on the anatomy, physiology and pathology of oro-facial, oro-pharyngeal and maxillofacial tissues, and functions and dysfunctions within the stomatognathic system, and the epidemiology, aetiology, prevention, diagnosis, prognosis and therapy of diseases and conditions that have an effect on the homeostasis of the mouth, jaws, and closely associated structures, as well as the healing and regeneration and the clinical aspects of replacement of hard and soft tissues with biomaterials, and the rehabilitation of stomatognathic functions. Studies that bring new knowledge on how to advance health on the individual or public health levels, including interactions between oral and general health and ill-health are welcome.