一些修复材料的强度保持和离子释放
Sufyan Garoushi1, Timo Peltola2, Minna Siekkinen3
1Department of Biomaterials Science and Turku Clinical Biomaterial Center-TCBC, Institute of Dentistry, University of Turku, Turku, Finland. sufgar@utu.fi.
Odontology
|September 25, 2024
概括
实验中的纤维增强复合树脂 (Bio-SFRC) 在老化和缓慢释放离子后保持了优越的强度,表明其作为耐用生物活性牙科材料的潜力.
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
- 复合树脂技术 复合树脂技术
背景情况:
- 生物活性牙科材料旨在促进组织再生和矿化.
- 在老化条件下评估材料耐用性和离子释放对于临床寿命至关重要.
- 现有的离子释放材料具有不同的性能特性.
研究的目的:
- 评估实验性纤维增强生物活性可流动复合树脂 (Bio-SFRC) 的屈曲强度和离子释放.
- 为了比较Bio-SFRC的性能与商业离子释放牙科材料在加速老化下.
- 评估Bio-SFRC作为牙科应用中的生物活性材料的潜力.
主要方法:
- 在水热老化之前和之后,对Bio-SFRC和对照材料的柔性强度测试.
- 紫外线-Vis光谱法用于量化模拟体液 (SBF) 中的二氧化和离子释放量.
- 扫描电子显微镜 (SEM) 和能量散射X射线光谱 (EDS) 用于表面微观结构分析.
主要成果:
- 与其他材料相比,Bio-SFRC在老化前后都表现出明显更高的屈曲强度.
- 热水老化通常会降低屈曲强度,而富士II LC没有显著变化.
- 生物-SFRC显示离子释放缓慢,而Biodentine和TheraCal LC显示酸沉; Surefil one和Fuji II LC释放的离子最小.
结论:
- 实验性Bio-SFRC显示出有希望的机械耐用性和生物活性潜力,这是由于其纤维增强和缓慢的离子释放.
- 该材料提供离子矿化的能力,加上其强度,将其定位为牙科应用的潜在优越选择.
- 对Bio-SFRC的长期临床性能和与口腔组织的相互作用进行进一步研究是有必要的.
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