高C因子腔: "雪技术",粘合剂应用方式和老化如何影响微拉伸键强度?
The journal of adhesive dentistry
|January 15, 2024
概括
蚀刻和冲洗模式和带有散装可流动复合材料的层在I类腔内为牙提供了优越的微拉伸键强度 (μTBS). 衰老并没有显著影响不同层层技术的债券强度.
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:
- 优化微拉伸键强度 (μTBS) 到牙对于持久的I类修复至关重要.
- 不同的分层技术和粘合剂应用模式可以影响牙科复合材料的寿命和完整性.
研究的目的:
- 在I类腔内评估微拉伸键强度 (μTBS) 与牙的关系.
- 为了比较各种分层技术,粘合剂应用模式 (自蚀与蚀和冲洗),以及对粘合强度的老化影响.
主要方法:
- 150个人的牙经历了I类腔室准备和通用粘合剂应用 (自我蚀刻或蚀刻和冲洗).
- 修复使用增量分层 (控制),散装填充可流动复合材料层,散装填充或除雪机技术进行.
- 微拉力键强度最初经过15000个热循环 (5-55°C) 后进行了测试.
主要成果:
- 使用散装可流动复合材料和分层的层技术在两个蚀刻模式中实现了最高的μTBS,无论是在最初还是老化后.
- 与自我蚀刻模式相比,蚀刻和冲洗模式显示出更高的μTBS.
- 衰老没有显著影响μTBS,粘合剂/混合失效占主导地位.
结论:
- 蚀刻和冲洗模式优于自蚀刻模式,可以在I级空洞中实现更高的μTBS.
- 使用散装可流动复合材料和雪技术的层在老化后提供了最佳的长期结合强度.
- 与分层或层方法相比,散装填充技术导致μTBS较低.
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