最近引入的CAD-CAM树脂修饰陶的不同表面处理:对结合强度的影响
Miguel Ángel Saravia-Rojas1, Victor Abel Huanambal-Tiravanti2, Rocio Geng-Vivanco3
1Full Professor and Department Head, Academic Department of Stomatology Clinic, School of Dentistry, University of Cayetano Heredia, Lima, Peru.
The Journal of prosthetic dentistry
|July 9, 2024
概括
空气中的颗粒磨损与氧化 (Al2O3) 和酸 (HF) 的组合显著提高了树脂修饰陶键强度. 然而,单单是HF就会对Vita Enamic产生负面影响.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 粘合式牙科 粘合式牙科
背景情况:
- 多种树脂改性陶 (RMCs) 对标准化临床粘合协议提出了挑战.
- 了解表面处理效应对于可预测的RMC修复至关重要.
研究的目的:
- 评估各种表面处理对树脂水泥与RMC的结合强度的影响.
- 为了比较空气中颗粒磨损 (Al2O3),酸 (HF) 调节和它们的组合的有效性.
主要方法:
- 四种RMC材料经过了四种表面处理:对照,Al2O3,HF和Al2O3+HF.
- 在24小时的储存和热循环后,使用微剪切测试评估了结合强度.
- 使用SEM和拉曼光谱分析了表面形态和组成.
主要成果:
- 所有测试的表面处理都增加了结合强度,与热循环后的对照组相比.
- 一般来说,Al2O3+HF组合产生了最高的结合强度,除了Alium材料.
- 仅HF调节就对Vita Enamic的键强度产生了负面影响,Vita Enamic显示出独特的双有机-无机组成.
结论:
- 用Al2O3跟随HF进行空气中颗粒磨损对于大多数RMC来说是一种有效的表面处理方法.
- 的有效性取决于材料,对Vita Enamic等特定的RMC组合物有潜在的有害影响.
- 优化表面处理对于可靠地将树脂水泥与各种RMC结合起来至关重要.
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