ABSTRACT Prepared by dry and wet approaches, respectively, the surface properties and bacterial adhesion of conventional zirconia (CZ) and self-glazed zirconia (SGZ) were investigated. Each zirconia was divided into unpolished and polished groups. Our results revealed that SGZ showed significantly lower surface roughness than CZ (P < 0.05) and lower surface-free energy (P < 0.05) in both polished and unpolished groups. The number of bacteria attached to SGZ was less than CZ in vitro (P < 0.05), but no significant difference was found between two kinds of zirconia in vivo (P > 0.05). Our findings suggest that SGZ, due to its excellent surface characteristics, is superior to CZ in bacterial adhesion and zirconia polishing serves as an indispensable procedure in clinics.

中文翻译：

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两种不同方法制备的氧化锆上细菌粘附和生物膜形成的比较：体外和体内研究

摘要分别通过干法和湿法制备，研究了常规氧化锆 (CZ) 和自釉氧化锆 (SGZ) 的表面特性和细菌粘附。每个氧化锆分为未抛光和抛光组。我们的结果表明，SGZ 在抛光组和未抛光组中显示出比 CZ 显着更低的表面粗糙度（P < 0.05）和更低的表面自由能（P < 0.05）。体外附着于SGZ的细菌数量少于CZ（P < 0.05），但体内两种氧化锆之间没有显着差异（P > 0.05）。我们的研究结果表明，SGZ 由于其优异的表面特性，在细菌粘附方面优于 CZ，氧化锆抛光是临床上必不可少的程序。