通过使用不同的粘合技术,对两种玻璃离子体水泥与复合树脂进行即时和延迟的微剪粘合强度评估 - - 一项体外研究
Somaya Ali Saleh1,2, Nisreen Nabiel Hassan2, Amna Algarni2
1Department of Operative Dentistry, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.
BDJ open
|December 17, 2024
概括
这项研究将树脂复合材料的结合强度与玻璃离子体水泥进行比较. 带有全蚀刻粘合剂的光滑树脂改性玻璃离子体显示出优越的即时和延迟结合强度.
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
- 恢复性牙科 恢复性牙科
背景情况:
- 玻璃离子体水泥 (GIC) 是广泛使用的牙科修复材料.
- 优化GIC和复合树脂之间的结合强度对于恢复寿命至关重要.
- 表面处理和粘合剂策略显著影响界面完整性.
研究的目的:
- 为了评估复合树脂和两种类型的GIC (RMGIC和CGIC) 之间的微剪接强度 (μSBS).
- 为了比较不同表面处理 (光滑,中等,粗) 和粘合系统 (总蚀刻与自蚀刻) 下的即时和延迟键强度.
主要方法:
- 准备了240个GIC标本 (RMGIC:Riva光疗法,CGIC:Riva自我疗法).
- 标本被分为即时 (24小时) 和延迟 (3个月) 组.
- 在复合树脂应用和μSBS测试之前,应用了表面处理 (光滑,中等,粗) 和粘合策略 (总蚀刻[TE],自蚀刻[SE]).
主要成果:
- 立即的μSBS对于RMGIC来说高于CGIC,而TE的表现优于SE.
- 在RMGIC中,光滑表面的结合强度明显高于中等和粗表面.
- 延迟的μSBS也有利于RMGIC而不是CGIC. 对于RMGIC,带有光滑/中等表面的TE显示出比带有粗表面的SE更好的结果. 对于CGIC来说,中等砂表面的结合强度高于光滑表面,TE和SE之间没有差异.
结论:
- 使用TE将复合树脂粘合到光滑的RMGIC,与CGIC相比,无论时间如何,都提供了优越的粘合强度.
- 与CGIC立即结合的最佳方法是使用TE技术.
- 对于对CGIC的延迟结合,建议进行表面粗,以提高结合强度.
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