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牙复合材料粘合失效与通用和蚀刻和冲洗粘合剂取决于应用方式和频率

Ellen Schulz-Kornas¹, Mathilde Tittel¹, Hartmut Schneider¹

¹Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany.

Dental materials : official publication of the Academy of Dental Materials

|December 24, 2023

概括

涂上一层额外的通用粘合剂可以增加牙和复合材料填充剂之间的间隙,特别是在蚀刻和冲洗模式下. 用一层通用粘合剂或参考粘合剂形成的间隙较少.

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
恢复性牙科恢复性牙科

背景情况:

在牙复合修复中,尽量减少接口间隙对于长寿至关重要.
万能粘合剂提供了多功能性,但它们的最佳应用需要研究.
了解影响差距形成的因素是预防二次和结合失败的关键.

研究的目的:

评估额外的通用粘合层对界面间隙形成的影响.
为了比较差距形成与不同的应用模式 (自我蚀刻与蚀刻和冲洗) 和老化.
为了评估通用粘合剂层数量对牙和牙粘合的影响.

主要方法:

在前肢上使用通用粘合剂 (Scotchbond Universal) 或OptiBond FL.恢复了V类腔.
粘合剂被应用在一个或两个层,在自我蚀刻或蚀刻和冲洗模式.
使用光谱域光连贯断层扫描 (SD-OCT) 和扫描电子显微镜 (SEM) 在各种衰老协议后分析了接口间隙.

主要成果:

缺口形成受到粘合剂类型,应用方式和层数 (p < 0.001) 的显著影响.
在蚀刻和冲洗模式下的通用粘合剂显示,与自蚀刻和参考相比,双层的间隙形成增加了.
观察到最少的界面间隙是在OptiBond FL (蚀刻和冲洗) 和一层通用粘合剂 (蚀刻和冲洗) 的一个或两个应用后.

结论:

粘合剂的应用模式和层次的数量是影响牙复合材料键完整性的关键因素.
在蚀刻和冲洗模式下对通用粘合剂的双重应用对酸蚀刻牙的适应产生了负面影响.
优化通用粘合剂的应用对于防止界面间隙形成和确保修复成功至关重要.

关键词:

应用模式应用模式牙科粘合剂牙科粘合剂接口间隙 (interfacial gap) 是一个介面间隙.线性混合模型线性混合模型其他国家和地区.光学连贯性断层扫描技术.扫描电子显微镜扫描电子显微镜表面质地表面质地

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