Color adjustment potential of two single shade resin-based composites before and after staining

Abstract

Objective: This in vitro study aims to evaluate the visual color adjustment potential (CAP-V) of two single shade resin-based composite before and after coffee staining. Materials and Methods: Class 3 cavities were prepared on the mesiobuccal surfaces of a total of 60 acrylic maxillary central denture, 30 in A2 shade and 30 in B1 shade. For the restoration of cavities, two different single-shade resin based composites (Omnichroma and Charisma Diamond One) and a nanohybrid composite (Filtek Ultimate, A2 and B1 Body shades) were used. After the restoration process, the samples were polished. The visual color adjustment potential (CAP-V) of all samples was evaluated 3 times respectively: before the staining process, after the staining process and after the re-polishing process. Data were analyzed with One-way analysis of variance (ANOVA) and Tukey tests (p=0.05). Results: The Omnichroma B1 groups showed better CAP-V values for initial and re-polished groups. In the groups after staining, the best CAP-V values were in the Charisma Diamond One A2 group and the worst values were in the Filtek B1 group (p