在Dentin Bond强度上对高功率快速固化的一年评估
Eva Klarić1, Josipa Vukelja Bosnić2, Matej Par1
1Department of Endodontics and Restorative Dentistry, University of Zagreb School of Dental Medicine, 10000 Zagreb, Croatia.
Materials (Basel, Switzerland)
|May 25, 2024
概括
批量填充复合材料的快速3秒光固化证明了与标准20秒固化的相似或更高的剪接强度. 泰特里克PowerFill表现出最高的长期结合强度,这表明3秒固化对于使用可激活流量化学技术 (AFCT) 代理的特定材料是可行的.
科学领域:
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
- 恢复性牙科 恢复性牙科
背景情况:
- 大量填充复合材料提供更快的临床应用.
- 优化光固化协议对于复合材料的性能至关重要.
- 高功率的LED固化单元可以缩短曝光时间.
研究的目的:
- 用3秒快速光固化协议评估散装复合材料的剪接强度.
- 为了比较快速固化的复合材料与标准固化时间的结合强度.
- 评估不同散装填充材料和固化方法的粘合强度的长期稳定性.
主要方法:
- 四种散装复合材料 (两个快速固化,两个控制) 用Scotchbond Universal Plus粘合到牙上.
- 复合材料在3000mW/cm2时光固化了3秒,在1000mW/cm2时光固化了20秒.
- 切割键强度在1,6个月和12个月的储存在37°C的水中后进行了测试.
主要成果:
- 对于大多数材料来说,3秒的固化协议在统计学上产生了类似或更高的剪接强度,而不是20秒的协议.
- 流动性复合材料 (Tetric PowerFlow,SDR Plus) 显示出高的初始债券强度,在12个月内下降.
- 12个月后,所有材料都显示出类似的结合强度,除了Tetric PowerFill (3s cure) 之外,它具有最高的价值.
结论:
- 快速的3秒光固化可以达到与大批填充复合材料常规20秒固化的可比或更高的剪接强度.
- 泰特里克PowerFill表现出优异的长期债券强度,特别是在3秒固化协议下.
- 对于含有活性流化学技术 (AFCT) 剂的散装复合材料,如Tetric PowerFill,建议采用3秒固化方案.
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