对加热复合树脂与三种常规化水泥的剪接强度进行了体外比较
Prasad Aravind1, Abhinav Mohan Kallat1, Prem Kumar Sivabalan1
1Department of Prosthodontics, Crown and Bridge, Mahe Institute of Dental Sciences and Hospital, Puducherry, IND.
Cureus
|November 29, 2023
概括
这项研究比较了牙科化剂与脱酸盐的剪切键强度. 自粘树脂水泥表现出最高的结合强度,而加热复合树脂表现出最低的结合强度,这表明预加热可能无法提高结合强度.
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:
- 化剂对于间接恢复至关重要.
- 评估不同材料的结合强度对于临床成功至关重要.
- 脱酸盐修复需要可靠的凝固方法.
研究的目的:
- 为了比较加热复合树脂,树脂修饰玻璃离子体水泥 (RMGIC) 和脱酸盐上的树脂水泥的剪接强度.
- 为了评估预热复合树脂对其结合强度的影响.
- 为了确定与脱酸盐结合的最佳化剂.
主要方法:
- 48个二氧化磁盘被用酸蚀刻.
- 复合树脂被加热到55-68°C以减少粘度.
- 切割键强度是用一个通用测试设备测量,在与不同的代理 luting 后.
主要成果:
- 自粘树脂水泥表现出最高的平均剪接强度 (7.3740 ± 0.6969 MPa).
- 光激活树脂水泥显示了第二高的结合强度 (4.4647 ± 0.9774 MPa).
- 纳米混合复合树脂的剪接强度最低 (2.2851 ± 0.5901 MPa),不同组之间存在显著差异 (p≤0.001).
结论:
- 预热复合树脂可以降低粘度以方便处理,但可能不会增强结合强度.
- 与加热复合树脂和RMGIC相比,自粘树脂水泥是与脱酸盐结合的优越选择.
- 复合树脂预热技术的标准化是需要的,以便在工艺过程中获得可预测的结果.
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