牙骨质表面性状的超微结构特征及其临床意义

A SEM Study of Effects of Various Root Surfaces Treatment on Reattachment

本实验应用扫描电镜观察研究正常根面和牙周病患牙暴露根段牙骨质表面的超微结构特征和变化。并观察在使用机械或化学方法对根面进行处理后的微观变化。结果表明,病变根面经刮治、平整、再用枸椽酸处理后,不仅能清除菌斑及其产物,去除刮治处理后留下的粗糙面及碎屑等,并能使根面脱矿、消化其胶原基质,暴露牙骨质中的胶原。正是这些胶原成为再附着的核心,进而诱导结缔组织分化修复性细胞,促进牙周再附着。

The purpose of this study was to evaluate the effectiveness of the root surface treateewith different ways on new attachment formation,The results showed that citric acidtreated specimens had relatively smooth surfaces containing numerous patent tubules andcollagen fibers are visible on the surfaces and within the tubules.