Comprehensive Evaluation of Long-Term Dentin Bond Strength, Water Sorption, Solubility, and Degree of Conversion of Self-Adhesive Resin Composites.

The journal of adhesive dentistry Pub Date : 2024-09-17 DOI:10.3290/j.jad.b5749506

Ye Yao, Di Wu, Carolina Cecilia Cifuentes-Jimenez, Hidehiko Sano, Pedro Alvarez-Lloret, Monica Yamauti, Atsushi Tomokiyo

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Abstract

Purpose: To evaluate the long-term microtensile bond strength (µTBS) to dentin, water sorption (WSP) and solubility (WSL), and degree of conversion (DC) of self-adhesive resin composites (SACs).

Materials and methods: The mid-coronal dentin of human molars was exposed, and teeth were randomly assigned to five groups according to the SACs (n = 10): 1. FIT SA F03 (FIT); 2. Experimental (EXP); 3. Fusio Liquid Dentin (FLD); 4. Vertise Flow (VER); 5. Constic (CON). The µTBS was evaluated after 24 hours (24 h) and 6 months (6 m) storage. A scanning electron microscope examined failure modes and resin-dentin interfaces. The WSP and WSL (n = 5) were evaluated following ISO 4049:2019 specifications, and DC (n = 3) was measured using Raman spectroscopy. The statistical analyses were performed accepting a significance level of p = 0.05.

Results: FIT, EXP, and FLD produced significantly higher µTBS median values than VER and CON after 24 h and 6 m (p 0.05). After 6m, the µTBS median of FIT and EXP significantly decreased (p 0.05), while FLD, VER, and CON showed no significant difference (p > 0.05). FLD and CON exhibited lower WSP than FIT, EXP, and VER (p 0.05). FLD presented the lowest (p 0.05), and VER revealed the highest WSL (p 0.05). FIT and EXP showed the highest (p 0.05), and VER demonstrated the lowest DC (p 0.05).

Conclusions: Following the present study's design, SACs' bonding performance and physical properties remained restricted. Therefore, the application should be considered cautiously, and further clinical trials are necessary to evaluate their long-term performance.

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全面评估自粘树脂复合材料的长期牙本质粘接强度、吸水性、溶解性和转化程度。

目的：评估自粘树脂复合材料（SAC）与牙本质的长期微拉伸粘接强度（µTBS）、吸水性（WSP）和溶解性（WSL）以及转化程度（DC）：暴露人类臼齿的中冠牙本质，根据自粘树脂复合材料（SACs）将牙齿随机分为五组（n = 10）：1.FIT SA F03 (FIT)；2.实验组 (EXP)；3.Fusio 液态牙本质 (FLD)；4.Vertise Flow (VER)；5.Constic (CON)。µTBS 在存放 24 小时（24 h）和 6 个月（6 m）后进行了评估。扫描电子显微镜检查了失效模式和树脂-牙本质界面。WSP 和 WSL（n = 5）按照 ISO 4049:2019 规范进行评估，DC（n = 3）则使用拉曼光谱进行测量。统计分析的显著性水平为 p = 0.05：结果：24 小时和 6 米后，FIT、EXP 和 FLD 产生的 µTBS 中值明显高于 VER 和 CON（p 0.05）。6 米后，FIT 和 EXP 的 µTBS 中值明显下降（p 0.05），而 FLD、VER 和 CON 没有明显差异（p > 0.05）。FLD 和 CON 的 WSP 低于 FIT、EXP 和 VER（p 0.05）。FLD 的 WSP 最低（p 0.05），VER 的 WSL 最高（p 0.05）。FIT 和 EXP 的 DC 值最高（p 0.05），而 VER 的 DC 值最低（p 0.05）：根据本研究的设计，SAC 的粘结性能和物理性质仍然受到限制。结论：根据本研究的设计，SAC 的粘接性能和物理性能仍然受到限制，因此应谨慎考虑其应用，有必要进行进一步的临床试验以评估其长期性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The journal of adhesive dentistry

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