树脂水门汀添加生物玻璃后在人工唾液中的生物活性研究

Investigation of the bioactivity of resin cement added with bioactive glass in artificial saliva

目的研究加入生物活性玻璃的树脂水门汀在人工唾液中的生物活性。方法将生物活性玻璃表面硅烷化,按比例与树脂水门汀混合均匀,放入配置好的人工唾液中分别浸泡3,7,14和28 d来检测其生物活性。结果扫描电镜/能谱仪(SEM/EDS)对材料的微观形貌进行分析后发现,在人工唾液中浸泡3 d材料的表面已经有矿化的磷灰石沉积,并且随着浸泡时间的增加而增厚。结论将生物活性玻璃添加入树脂水门汀后在人工唾液中具有较强的生物活性,可以提高树脂水门汀的生物性能。

Objective To investigate the bioactivity of resin cement added with bioactive glass in artificial saliva.Methods Surface silanized bioactive glass was proportionally mixed with the resin cement,and the mixture was immersed in artifical saliva for 3,7,14,and 28 d to test the bioactivity.Results The microstructure of the material was analyzed with scanning electron microscopy/energy dispersive spectroscopy（SEM/EDS）,finding that after immersed in artificial saliva for 3 d,the surfaces of the material had been deposited with mineralized apatite,which became thicker with soaking time increasing.Conclusions The resin cement added with bioactive glass in artificial saliva has strong bioactivity,and its biological properties are improved.