Ozdemir Akkus Niler
Department of Prosthodontics, Faculty of Dentistry, Okan University, Istanbul, TurkeyPublications
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Research Article
Effect of Surface Finishing Methods and Corrosion on Surface Elemental Composition and Roughness of Dental Ceramics
Author(s): Ozdemir Akkus Niler* and Aksoy Gokhan
Aims: The aim of this study was to compare the effect of surface finishing methods and chemical corrosion on surface elemental composition and roughness of ceramic materials. Material and Methods: 20 ceramic disks were fabricated from A1 shade of Empress, Zirkonzahn, Noritake Cerabien ZR, Finesse, Vita VM7 and divided into 2 groups of autoglaze and polishing(n=10). The surface roughness (Ra) and surface elemental analyses were evaluated before and after in vitro corrosion (pH 4.5–pH 7–pH 9 in water at 37°C ± 2°C for 18 hours and at pH 2.4 in 4% acetic acid at 80°C ± 2°C for 18 hours). The data were statistically analyzed by Univariate Analysis of Variance and Bonferroni Test. Multiple comparisons of Ra values between autoglaze and polishing groups for each brand of ceramic were computed by T-Test... Read More»