最大限度地提高牙复合材料的性能:通过创新的聚合物涂层MgO纳米粒子增强强度和硬度
Ghada H Naguib1, Dalia Abuelenain2, Jumana Mazhar3
1Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Oral Biology, Cairo University School of Dentistry, Cairo, Egypt.
Journal of dentistry
|July 28, 2024
概括
纳氧化物纳米颗粒 (zMgO NPs) 增强牙科树脂复合材料. 低度 (0.3-0.5%) 显著改善了压力强度,屈曲强度和硬度,有利于牙修复的耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 牙科材料科学 牙科材料科学
背景情况:
- 氧化物纳米颗粒 (zMgO NPs) 显示出改变牙材料性能的潜力.
- zMgO NP对树脂复合材料机械特性的影响在很大程度上仍未被探索.
- 研究这些效应对于推进牙科修复材料至关重要.
研究的目的:
- 评估不同zMgO NP度对传统,可流动和散装树脂复合材料的机械性能的影响.
- 确定zMgONP的最佳度,以提高压力强度,屈曲强度和微硬度.
- 评估zMgO NPs作为牙科复合材料中强化剂的潜力.
主要方法:
- 四百五十个树脂复合样本 (传统的,可流动的,批量填充) 用0%,0.3%,0.5%,1%或2%的zMgONP.
- 机械性能测试包括压力强度,屈曲强度和微硬度分析.
- 样本的表征使用X射线衍射,FTIR,SEM,EDS和TEM进行结构和组成分析.
主要成果:
- zMgONP在复合基质中均分布,形成了一个稳定的混合材料.
- 与对照组相比,含有0.3%和0.5%zMgONP的复合材料在压力强度,屈曲强度和硬度上显著增加.
- 散装填充复合材料与zMgONP显示在所有测试度的硬度显著增加.
结论:
- 纳入zMgONP,特别是在低度 (0.3-0.5%),可以提高各种牙科树脂复合材料的机械性能.
- 经过修改的复合材料表现出改善或保持机械完整性,这表明它们适用于牙科应用.
- zMgO NPs代表了开发更耐用和更有弹性的牙科修复材料的有希望的添加剂.
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