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基于聚氨酸的牙科复合材料的合成,单体转化和机械性能
Saadia Bano Lone1, Rabia Zeeshan2, Hina Khadim2
1Department of Dental Materials, Rashid Latif Dental College, Lahore, Pakistan.
Journal of the mechanical behavior of biomedical materials
|January 18, 2024
概括
这项研究开发了一种使用酸和聚氨酸的新生物活性牙复合物. 虽然增加了聚氨酸略有降低了机械强度,但它增强了酸盐的形成,可能防止了二次.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
背景情况:
- 牙科复合材料是广泛使用的修复材料.
- 开发生物活性和抗菌复合材料对于预防二次虫至关重要.
- 结合活性酸和聚氨酸,有可能提高牙材料的性能.
研究的目的:
- 为了合成一种新的生物活性和抗菌牙复合物.
- 评估反应性酸和聚氨酸填充剂对复合材料性能的影响.
- 评估结构分析,单体转化,机械性能和生物活性.
主要方法:
- 牙复合材料的配方包括尿二甲酸盐,聚烯糖醇二甲酸盐,,酸盐和不同度的聚氨酸.
- 福里埃变换红外光谱法 (FTIR) 评估了单体转换的程度.
- 测试了机械性能 (压力强度,维克的微硬度,剪接强度). 使用扫描电子显微镜 (SEM) 在沉浸在模拟体液后评估生物活性.
主要成果:
- 实验对照组 (E-C) 与实验和商业对照组相比,表现出优越的机械性能和转换程度.
- 增加的聚氨酸含量导致机械性能下降,但增强了酸盐层的形成,表明生物活性增加.
- SEM分析证实,在E-CCP10组中,酸盐层形成最大.
结论:
- 实验复合物显示出最佳的转化程度,尽管机械性能因高聚氨酸含量而受到损害.
- 由聚氨酸促进的无矿层的形成表明了重矿化的潜力.
- 这些发现表明,开发的复合材料可能有助于预防二次.
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