在II类修复中,C因子对散装填充V/S微混合复合材料的微拉力键强度的影响 - - 一项体外研究
Vijay Yadav1, Ruchika Nawal Roongta1, Seema Yadav1
1Department of Conservative dentistry and Endodontics, Maulana Azad Institute of Dental Sciences, Delhi University, New Delhi, India.
概括
在II类空洞中,高配置因子 (C-因子) 没有影响SDR Surefil和Sonic Fill等散装填充复合材料的微拉伸键强度 (μTBS). 这些材料的性能与微混合复合材料相当.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 生物材料工程 生物材料工程
背景情况:
- 牙修复中的高配置因子 (C-因子) 可以增加聚合缩水应力,可能导致接口故障.
- 了解C因子对键强度的影响对于选择合适的修复材料至关重要.
研究的目的:
- 为了评估C因子对II类空洞中散装填充复合材料微拉伸结合强度 (μTBS) 的影响.
- 为了比较散装填充复合材料 (SDR Surefil,Sonic Fill) 与常规复合材料 (Filtek Z250) 在不同的C因子条件下的性能.
主要方法:
- 90个提取的人类牙与不同深度 (2.5mm,4mm,6mm) 的II类腔室被SDR Surefil,Sonic Fill或Filtek Z250.0恢复.
- 微型样本被准备好并接受微拉伸键强度 (μTBS) 测试.
- 使用单向ANOVA和Tukey的后期测试进行了统计分析.
主要成果:
- 与SonicFill和微混合复合材料相比,SDR Surefil在被放置在II类空洞中的4mm散装时表现出优越的μTBS.
- 该研究发现,高C因子对使用SDR Surefil和Sonic Fill恢复牙的μTBS没有显著的影响,而与微混合复合材料相比.
结论:
- 大量填充复合材料,如SDR Surefil和Sonic Fill,即使在高C因子II类空洞中,也具有与传统微混合复合材料相比的微拉伸强度.
- 在评估的空洞配置中,C因素并没有对这些测试的散装填充材料的粘合强度产生负面影响.
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