• B Ozdemir, N Ozakar Ilday, S B Ozdemir, F Suleyman, and Z Yesil Duymus.
• Department of Restorative Dentistry, Faculty of Dentistry, Giresun University, Giresun, Turkey.
• Niger J Clin Pract. 2022 Mar 1; 25 (3): 248254248-254.

Aims And BackgroundThe aim of this study is to evaluate the surface microhardness and roughness of composites treated with three different polishing systems exposed to two different corrosive beverages.Material And MethodsNinety-six composite resin disks were randomly divided into four groups, one of which was the control group. The surface roughness and microhardness values were measured after 24 h in the polishing process. The samples were divided into three subgroups and kept in distilled water, cola, and ice tea for 20 min a day for 14 days. Then, the roughness and microhardness measurements of the samples were taken again. Two samples randomly selected from each group were examined using a scanning electron microscope (SEM) and analyzed statistically using the two way anova (ANOVA) and Duncan tests.ResultsA statistically significant difference was found between the roughness and hardness values at the end of 24 h and 14 days. Onegloss (OG), Dentoflex (DF), and Super-snap (SNP) polish systems showed the highest roughness in the cola group, respectively. Microhardness values: The unpolished group had the lowest significant microhardness in the coke group (P < 0.05).ConclusionIn this study, it was seen that the lowest success rate was the OG polishing system.

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