双固化核心材料与自蚀刻粘合剂的兼容性
Zachary K Greene1, Augusto A Robles2, Nathaniel C Lawson1
1Division of Biomaterials, UAB School of Dentistry, Birmingham, AL 35233, USA.
Dentistry journal
|July 25, 2025
概括
研究了自蚀刻粘合剂和含氨酸的双固化核心材料之间的材料不兼容性. 无氨酸的核心材料和光固化证明了牙键强度的提高,最大限度地减少了潜在的问题.
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:
- 自制蚀刻粘合剂和用于核心积聚的含氨酸双固化树脂复合材料之间存在既定的材料不兼容性.
- 双固化复合材料中的氨基加速器可以干扰聚合,并在与酸性自蚀刻粘合剂一起使用时降低粘合强度.
- 了解这些相互作用对于可预测的恢复性牙科的临床结果至关重要.
研究的目的:
- 为了比较各种含氨和无氨双固化核心材料的牙键强度,当与不同pH值的自蚀刻粘合剂一起使用时.
- 评估粘合剂pH值和核心材料化学对粘合耐久性的影响.
- 确定在核心积累程序中减轻材料不兼容性的策略.
主要方法:
- 提取的人类牙被准备好,并根据双固化的核心材料 (含氨,无氨) 和自蚀刻粘合剂pH值 (1.0,3.0,4.0) 将标本分配到组.
- 在24小时储水后,使用通用测试机测量了剪接强度.
- 一项比较分析包括光固化核心材料和一个仅用于光固化的参考复合材料.
主要成果:
- 在粘合剂,核心材料和它们的相互作用之间发现了剪接强度的统计学上显著差异 (p < 0.01).
- 对于自固化材料,观察到与粘合剂pH (pH 4.0 > 3.0 > 1.0) 的下降一起粘合强度下降的趋势.
- 无氨的核心材料比含氨的材料具有更高的结合强度,特别是在自我修复模式下. 光固化增强了某些材料的结合强度.
结论:
- 自蚀刻粘合剂和双固化树脂复合芯材料之间的材料不兼容得到证实.
- 较低的粘合剂pH值在自固化过程中对双固化核心材料的粘合强度产生负面影响.
- 使用无氨酸的核心材料或采用光固化双固化复合材料可以最大限度地减少或克服这种不兼容性.
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