粘合剂应用中的热空气传递:对粘合性能和形态结果的影响
Rim Bourgi1,2, Naji Kharouf2,3, Carlos Enrique Cuevas-Suárez4
1Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon.
Biomimetics (Basel, Switzerland)
|April 26, 2024
概括
温暖的空气温度 (40°C和60°C) 通过提高溶剂蒸发,显著提高牙粘合剂的性能. 这导致更好的结合强度和牙科修复的寿命,为牙医提供了实际的优化.
科学领域:
- 牙科材料科学 牙科材料科学
- 粘合式牙科 粘合式牙科
- 生物材料工程 生物材料工程
背景情况:
- 溶剂蒸发对于牙粘合剂的性能至关重要.
- 优化此步骤可以增强结合强度和恢复寿命.
- 目前的方法缺乏对蒸发的特定温度优化.
研究的目的:
- 评估不同空气干燥温度对四种通用粘合剂系统性能的影响.
- 为了确定高温 (40°C,60°C) 与环境温度 (20°C) 相比,提高微拉伸键强度 (μTBS).
- 评估二次结果,包括故障模式和粘合层特性.
主要方法:
- 用四种粘合系统 (PBU,OBU,OBFL,CSE) 准备了60个人的牙进行μTBS测试.
- 使用冷 (20°C),温暖 (40°C) 或热 (60°C) 的空气进行了10秒的溶剂蒸发.
- 在μTBS测试之前,粘合样本经过24小时和6个月的老化;进行了故障分析和SEM.
主要成果:
- 在粘合剂系统之间或老化时,没有观察到粘合强度的显著差异.
- 空气干燥温度显著影响了结合强度 (p < 0.05),其中60°C产生了最高值.
- 更高的温度 (40°C,60°C) 增加了质量损失,这表明溶剂蒸发更加完整,粘合层质量得到了改善.
结论:
- 在溶剂蒸发过程中空气温度升高 (40°C和60°C) 会对牙粘合剂的性能产生积极的影响.
- 通过更温暖的空气优化溶剂蒸发,可以提高微拉伸键强度和粘合剂-牙接口的质量.
- 这提供了一种简单而有效的方法来提高牙科修复的耐用性.
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