通用粘合剂/树脂水泥组合的粘合强度依赖于触摸固化机制
Annamaria Forte1, Eugenia Baena2, Claudia Mazzitelli1
1Department of Biomedical and Neuromotor Sciences, University of Bologna, Via San Vitale 59, 40125 Bologna, Italy.
Polymers
|May 14, 2025
概括
这项研究比较了两个双固化树脂水泥,Estecem II Plus (EP) 和Variolink Esthetic DC (VAR),以测量结合强度. 在自我固化时,EP显示出最佳的结合强度,无论基质如何,而VAR则显示出最佳的结合强度.
科学领域:
- 牙科材料科学 牙科材料科学
- 粘合式牙科 粘合式牙科
- 生物材料工程 生物材料工程
背景情况:
- 双固化树脂在间接修复中至关重要,特别是当光固化受到阻碍时.
- 优化牙和修复材料之间的结合强度是一个持续的临床挑战.
研究的目的:
- 为了评估Estecem II Plus (EP) 和Variolink Esthetic DC (VAR) 双固化树脂水泥的微切割键强度 (μSBS).
- 为了比较不同的通用粘合剂 (Tokuyama Universal Bond II - TUB,Adhese Universal DC - ADH) 和固化模式 (光固化与自固化) 对粘合强度的影响.
- 为了评估热循环后的结合耐用性.
主要方法:
- 两个双固化树脂水泥 (EP,VAR) 和两个通用粘合剂 (TUB,ADH) 在树脂复合材料和牙基板上进行了测试.
- 微切断键强度 (μSBS) 测试是在24小时 (T0) 和热循环 (TC) 后进行的.
- 分析了故障模式,并使用三向ANOVA和Tukey测试进行统计分析.
主要成果:
- 在复合基板上,自固化的TUB/EP在T0和TC表现出最高的μSBS.
- 在TC后,自固化的TUB/EP和光固化的ADH/VAR显示稳定的键强度.
- 在牙上,TUB/EP光固化在T0时优越,但TC在光固化组中降低了结合强度.
结论:
- 在自固化时,Estecem II Plus (EP) 实现了最佳的结合强度,不管结合基板 (复合材料或牙).
- Variolink 审美直流 (VAR) 的性能更多地受到粘合基板的影响,而不是固化模式.
- 热循环对光固化组的键强度产生了负面影响,突出显示了固化模式和基质选择的重要性.
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