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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effect of surface roughness of porcelain on adhesion of bacteria and their synthesizing glucans.
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Effect of surface roughness of porcelain on adhesion of bacteria and their synthesizing glucans.

机译：瓷器表面粗糙度对细菌及其合成葡聚糖黏附的影响。

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STATEMENT OF PROBLEM: In some instances of porcelain restoration, refinishing is inevitable. In terms of plaque accumulation on porcelain, refinishing could be a substitute method for glazing. PURPOSE: This study compared the amount of adhesion of plaque components (bacterial cells and glucans) on porcelain disks with various degrees of surface roughness to assess the effects of surface roughness on the amount of plaque accumulation. MATERIAL AND METHODS: Radiolabeled cell suspensions were incubated with porcelain disks for 3, 8, and 24 hours at 37 degrees C, and the amounts of adhered cells and glucans were measured by using a liquid scintillation method. RESULTS: The amount of cells and glucans adhered on porcelain increased with incubation time. The surface roughness value and the amount of plaque adhesion decreased with the increase in polishing level. However, the greatest amount of plaque was adhered on glazed surfaces, although their surfaces were smoother than the surfaces polished with 120- or 600-grit abrasive papers. CONCLUSION: With the exception of glazed surfaces, a positive correlation between surface roughness and the amount of plaque accumulation was observed. Repolishing with a diamond paste would not induce problems of plaque accumulation, compared with an intact glazed surface.
机译：问题陈述：在瓷器修复的某些情况下，修补是不可避免的。就牙垢在瓷器上的积聚而言，修补可作为上光的替代方法。目的：本研究比较了不同表面粗糙度程度的瓷盘上牙菌斑成分（细菌细胞和葡聚糖）的附着量，以评估表面粗糙度对牙菌斑堆积量的影响。材料与方法：将放射性标记的细胞悬液与瓷盘在37摄氏度下孵育3、8和24小时，并使用液体闪烁法测量粘附细胞和葡聚糖的量。结果：附着在瓷上的细胞和葡聚糖的数量随孵育时间的增加而增加。随着抛光水平的提高，表面粗糙度值和斑块附着量降低。但是，尽管它们的表面比用120或600粒度砂纸打磨的表面光滑，但它们在玻璃表面上附着的牙菌斑数量最多。结论：除上釉表面外，还观察到表面粗糙度与牙菌斑堆积量呈正相关。与完整的釉面相比，用钻石膏重新抛光不会引起牙菌斑积聚的问题。

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