探索生物活性玻璃离子体水泥的多功能潜力
J O Makanjuola1, R G Hill2, S A Niazi1,3
1Centre for Oral, Clinical & Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, Guy's Hospital, London, UK.
Journal of dental research
|November 27, 2025
概括
这项研究引入了一种新的无生物活性玻璃 (J-BAG),用于玻璃离子体水泥 (GIC). 结合J-BAG可以提高机械强度,离子释放,抗菌性能和矿化,提供更好的牙修复材料.
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
- 纳米技术纳米技术
背景情况:
- 在玻璃离子体水泥 (GIC) 中的传统生物活性玻璃可改善矿化,但由于高含量,其机械性能不佳.
- 需要具有增强机械和治疗性质的先进GIC,以改善临床结果.
研究的目的:
- 为GICs研究一种新的无,化物和丰富的生物活性玻璃 (J-BAG).
- 评估J-BAG结合对GICs机械性能,离子释放,抗菌功效和矿化能力的影响.
主要方法:
- 合成了J-BAG (38.3SiO2-6P2O5-43.9CaO-6.8CaF2-5MgO) 和实验性的离子体玻璃,使用融灭技术.
- 将J-BAG纳入实验Mg-Zn和参考Fuji IXGIC,重量百分比不同 (5%,10%,15%).
- 在实验室中评估了机械性能 (压力强度,曲强度,微硬度),离子释放,对空心生物膜的抗菌活性和矿化能力.
主要成果:
- 与未经修改的对照组相比,J-BAG的结合 (5-10重量%) 显著改善了GIC的压力强度,屈曲强度和微硬度.
- 在J-BAG修饰的GIC中观察到增强的化物,和离子释放.
- J-BAG增强了对多种菌生物膜的抗菌疗效,并促进了脱矿性牙表面显著的矿物沉积.
- 在Mg-Zn GIC (LG5) 中,最佳的J-BAG负荷为5%,在Fuji IX (F10) 中为10%.
结论:
- 新型无J-BAG在最佳度纳入GIC时,同时增强机械性能,离子释放,抗菌活性和矿化.
- 这些多功能J-BAG修改的GIC代表了创伤后修复治疗和长期牙康复的有希望的进步,特别是在高病风险患者中.
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