Comparison of One-Step and Multistep Polishing Systems for the Surface Roughness of Resin Composites
Comparison of One-Step and Multistep Polishing Systems for the Surface Roughness of Resin Composites作者机构：Department of Restorative Dentistry Faculty of Dentistry Ankara University Ankara Turkey Department of Restorative Dentistry Faculty of Dentistry Osmangazi University Eskisehir Turkey Department of Restorative Dentistry Faculty of Dentistry Near East University Mersin Turkey
出 版 物：《Open Journal of Stomatology》 (口腔学期刊（英文）)
年 卷 期：2016年第6卷第3期
页 面：73-80页
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
主 题：Surface Roughness Resin Composites One-Step Polishing
摘 要：Aim: This study analyzed the effect of different finishing and polishing systems on the surface roughness of a microfilled (Amaris), and a nanofilled resin composite (Clearfil Majesty Esthetic) using Scanning electron microscope (SEM) analysis and surface roughness tester. Materials and Methods: Thirty five specimens of each material were prepared in a plexiglass mold (10 mm in diameter and 2 mm in depth) and cured against a Mylar matrix strip to create a baseline surface. The average surface roughness was measured using a surface profilometer (Mahr Perthometer SP4, Germany) in three different positions on each sample before and after finishing with one of the seven finishing procedures: Procedure 1: Mylar strip (control), Procedure 2: Tungsten carbide burs, Procedure 3: Diamond burs, Procedure 4: Procedure 2 + one-step diamond micropolisher (PoGo), Procedure 5: Procedure 2 + multi-step discs (Super-snap), Procedure 6: Procedure 3 + one-step diamond micropolisher (PoGo), Procedure 7: Procedure 3 + multi-step discs (Super-snap). The obtained data were analyzed using two-way analysis of variance (ANOVA) and Duncan test at a p = 0.05 significance level. Results: Nanofilled composite showed significantly lower Ra values than microfilled composite in procedures 4, 6 and 7 (p 0.05). Conclusion: Nanofilled resin composite showed significantly lower Ra values than microfilled resin composite. Regardless of finishing methods, diamond micro-polisher produced smoother surfaces than polishing discs.
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