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-  2018 

牙龈卟啉单胞菌和溶血性链球菌在氧化锆和钛表面黏附性能的比较 Adhension Properties of Porphyromonas Gingivalis and Streptococcus Sanguis on Zirconium Dioxide and Titanium Surfaces:A Study in Vitro

Keywords: 牙种植,氧化锆,牙龈卟啉单胞菌,溶血性链球菌

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Abstract:

目的:比较牙龈卟啉单胞菌和溶血性链球菌在氧化锆和钛表面的黏附性能。方法:制作6.8mm×6.8mm×1.5mm的块状氧化锆和钛样本,碳化硅砂纸逐级打磨、清洗、消毒。采用扫描电镜(SEM)和原子力显微镜(AFM)观察材料表面形貌,检测材料表面粗糙度与湿润性。利用SEM观察牙龈卟啉单胞菌和溶血性链球菌在氧化锆和钛材料表面的黏附,采用MTT法间接检测牙龈卟啉单胞菌和溶血性链球菌在氧化锆和钛表面黏附的量。结果:SEM的结果表明氧化锆表面黏附的致病菌数量少于钛表面,MTT结果显示牙龈卟啉单胞菌在氧化锆表面黏附的数量明显少于钛表面,而溶血性链球菌在氧化锆和钛表面黏附的数量没有统计学差异。结论:相较于氧化锆表面,种植体周围炎常见致病菌更易黏附于钛表面

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