Effect of Different Surface Finishing Methods and Colorant Solutions on Translucency of Monolithic CAD/CAM Ceramics
Journal Title: Meandros Medical and Dental Journal - Year 2019, Vol 20, Issue 2
Abstract
Objective: An ideal aesthetic restoration should be morphologically and optically compatible with the natural teeth and, at the same time, biologically acceptable. The translucency of the restoration is the most important factor in achieving a natural tooth appearance. The aim of this study was to compare the translucency parameters (TPs) of two types of monolithic computer-aided design/computeraided manufacturing (CAD/CAM) ceramics, Vita Suprinity HT (VS) and IPS e.max CAD HT (IPS), after utilizing three different surface finishing methods and being exposed to cola, coffee, and black tea solutions. Materials and Methods: A total of 24 groups consisting of 10 samples each were created from VS and IPS e.max CAD ceramics. Glaze, Shofu polishers, and Sof-lex polishing discs were used to finish the surface of the ceramics. Cola, coffee, and black tea were used as coloring solutions. For the control groups, samples were kept in distilled water. The TP was determined for optical properties. Data were statistically analyzed using three-way analysis of variance (ANOVA). The Bonferroni test was used for multiple comparisons. Results: Material, method, group and interaction effects were found statistically significant (p<0.001). There was a statistically significant difference in TP value between the materials in terms of applied surface treatments (p<0.05). The TP value for each group was different for the exposed solutions after surface finishing (p<0.05). Conclusion: Translucency was affected by type of the monolithic CAD/CAM ceramic material used. The translucency of the VS ceramic was found to be higher than the IPS ceramic. Colorant solutions decreased the translucency of all ceramics. The lowest TP value for the IPS group was observed in the samples exposed to cola, while for the VS group it was observed in the samples exposed to black tea. The IPS ceramic finished with Sof-lex and the VS ceramic finished with Shofu exhibited higher translucency values.
Authors and Affiliations
Yeliz Hayran, Işıl Sarıkaya
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