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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effect of different finishing techniques for restorative materials on surface roughness and bacterial adhesion.
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Effect of different finishing techniques for restorative materials on surface roughness and bacterial adhesion.

机译：修复材料的不同精加工技术对表面粗糙度和细菌附着力的影响。

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STATEMENT OF PROBLEM: The formation of biofilm and bacterial accumulation on dental materials may lead to the development of gingival inflammation and secondary caries. PURPOSE: The purpose of this study was to examine the effect of different surface finishing and polishing methods on surface roughness and the adhesion of S. mutans bacteria to 2 new-generation indirect composite resins, 1 direct composite resin, and 1 ceramic material. MATERIAL AND METHODS: Forty specimens (10 x 10 x 2 mm) of each material, indirect composite resins (SR Adoro, Estenia), direct composite resin (Tetric), and a ceramic material (VITABLOCS Mark II), were fabricated. Specimens were divided into 4 groups (n=10) that were treated with 1 of the following 4 surface finishing techniques: diamond rotary cutting instrument, sandpaper discs (Sof-Lex), silicone-carbide rubber points (Shofu), or a felt wheel with diamond paste. Surface roughness was measured with a profilometer. Test specimens were covered with artificial saliva and mucin to produce pellicle. Bacterial suspension (10(9) CFU/ml) was then added to the pellicle-coated specimens, and bacterial adhesion was determined using a confocal laser microscope and image analyzing program. Data were analyzed with 2-way ANOVA, followed by Tukey HSD test, Pearson correlation, and regression analysis (alpha=.05). RESULTS: The highest surface roughness values were recorded in SR Adoro and diamond rotary cutting instrument groups. The lowest vital S. mutans adhesion was seen in the ceramic group and in SR Adoro indirect composite resin (P<.05). CONCLUSIONS: Bacterial adhesion to indirect composite resin materials differed from that to ceramic material after surface treatments. A positive correlation was observed between surface roughness and the vital S. mutans adhesion.
机译：问题陈述：牙科材料上生物膜的形成和细菌的积累可能导致牙龈发炎和继发龋齿的发展。目的：本研究的目的是研究不同表面处理和抛光方法对变形链球菌细菌对2种新一代间接复合树脂，1种直接复合树脂和1种陶瓷材料的粘附性的影响。材料和方法：每种材料分别制作了40个样品（10 x 10 x 2 mm），间接复合树脂（SR Adoro，Estenia），直接复合树脂（Tetric）和陶瓷材料（VITABLOCS Mark II）。将样品分为4组（n = 10），并用以下4种表面处理技术中的1种进行处理：金刚石旋转切割仪，砂纸盘（Sof-Lex），碳化硅橡胶尖端（Shofu）或毛毡轮加上钻石糊用轮廓仪测量表面粗糙度。用人工唾液和粘蛋白覆盖测试样品以产生防护膜。然后将细菌悬浮液（10（9）CFU / ml）添加到经防护膜覆盖的标本中，并使用共聚焦激光显微镜和图像分析程序确定细菌粘附。数据使用2通ANOVA分析，然后进行Tukey HSD测试，Pearson相关性和回归分析（alpha = .05）。结果：SR Adoro和金刚石旋转切割仪器组记录了最高的表面粗糙度值。在陶瓷组和SR Adoro间接复合树脂中，最低的变形链球菌粘附力最低（P <.05）。结论：表面处理后，细菌对间接复合树脂材料的粘附力与对陶瓷材料的粘附力不同。在表面粗糙度和重要的变形链球菌粘附之间观察到正相关。

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