聚合方案对快速固化的散装填充复合材料水吸附,溶解度和湿透膨胀的影响
Halah Thanoon1, Nikolaos Silikas2, David C Watts3
1Division of Dentistry, School of Medical Sciences, University of Manchester, Manchester, UK; Department of Restorative Dentistry, College of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
概括
快速固化的Tetric PowerFill (TPF) 显示出最小的水吸附,溶性和膨胀,超过了传统的散装填充树脂基复合材料 (RBC). 这表明TPF是TPF.
科学领域:
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 大量填充树脂基复合材料 (RBC) 由于其效率在牙科中被广泛使用.
- 优化光固化协议对于确保RBC的长期稳定性和性能至关重要.
- 了解红细胞的水吸收,溶解性和湿透扩张对于预测它们的临床寿命至关重要.
研究的目的:
- 评估两种LED多波光固化单元 (LCU) 协议 (3秒快速固化与20秒标准固化) 对大量填充红细胞的物理性质的影响.
- 为了比较快速固化的复合材料 (Tetric PowerFill® - TPF) 与两个常规复合材料 (Tetric EvoCeram散装填充 - EVO和GrandioSo x-tra散装填充 - GSO) 的水吸附,溶解度和湿度扩张.
- 为了评估这些红细胞在蒸水中老化120天后的尺寸稳定性.
主要方法:
- 三个散装RBC (TPF,EVO,GSO) 进行了测试.
- 样品在3秒或20秒模式下使用Bluephase® PowerCure LCU进行光固化.
- 测量了120天的水储存在37°C的水吸附,溶解度和湿透膨胀,随后进行了脱吸测量.
主要成果:
- 泰特里克PowerFill (TPF),当光固化3秒,展现出最低的水吸附率 (0.83%),溶解率 (1.01μg/mm3) 和体积膨胀 (1.64%).
- 传统的复合材料 (EVO和GSO) 显示出更高的水吸附和溶解度,特别是在3秒固化协议下.
- 所有测试材料都符合ISO 4049水吸附和溶解度标准.
结论:
- 快速的3秒固化方案并没有对Tetric PowerFill (TPF) 的水吸附或溶解性产生负面影响.
- 与标准固化相比,传统的散装复合材料在快固化协议下经历了水吸附和溶解度的增加.
- 在快速和标准光固化协议中,Tetric PowerFill表现出卓越的稳定性,这表明它适合有效的临床应用.
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