框架材料和热衰老对三种不同的牙颜色复合树脂的剪接强度的影响
Saliha Cagla Incearik1, Guliz Aktas1, Diler Deniz1
1Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara 06100, Turkey.
Materials (Basel, Switzerland)
|December 11, 2025
概括
该研究发现,使用Gradia Gum复合材料的基框架在没有热衰老的情况下显示出最高的剪接强度 (SBS). 在所有测试的牙科修复材料中,热老化对SBS有负面影响.
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:
- 牙颜色的复合材料对于美观的固定牙修复至关重要.
- 了解框架材料和复合材料之间的结合强度对于恢复寿命至关重要.
- 热老化可以显著影响牙科修复的机械性能和耐用性.
研究的目的:
- 为了评估与不同框架材料 (,,改性PEEK) 结合的色复合材料的剪接强度 (SBS).
- 评估这些材料组合的热老化对SBS的影响.
- 为了确定最优的材料组合,用于持久的固定牙科修复.
主要方法:
- 准备了270个样本,使用,,和修改的PEEK框架与三个牙颜色的复合材料.
- 为了模拟老化,将一半的样本 subjected to 10,000 热循环 (5-55 °C).
- 通过显微镜进行剪接强度测试并分析故障模式.
主要成果:
- 对于使用Gradia Gum的氧化,特别是没有热老化时,观察到SBS的最高值.
- 在热老化后,Nexco与石的SBS发现最低.
- 在所有测试材料组合中,热老化显著降低了SBS,在修改的PEEK组中,粘合器故障占主导地位.
结论:
- 框架材料和复合材料类型都显著影响牙色复合材料的剪接强度.
- 热老化对粘合强度有不利影响,减少了牙科修复的寿命.
- 材料选择和了解老化影响对于成功的固定牙科修复至关重要.
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