Ozyurt, EsraKurt, Aysegul2024-06-122024-06-1220220894-8275https://hdl.handle.net/20.500.14551/25495Purpose: To evaluate the in vitro color stability and surface properties of bulk-fill resin composites after exposure to coffee and cola. Methods: Color stability was evaluated in a conventional resin composite (Filtek Z250) and three bulk-fill resin composites (Filtek One Bulk Fill, Tetric N-Ceram Bulk Fill, and Beautifil Bulk Fill as giomer). Color change (CIEDE 2000 AE00) was calculated after 12 days of immersion in distilled water (control), coffee, or cola (Diet Coke). Water sorption (%Wsp) and solubility (%Wsl) ratios were calculated for each material in each solution. One sample of each material from each condition was observed with scanning electron microscopy and atomic force microscopy. Generalized linear modeling and Bonferroni correction were used for AE00 value analysis. One-way ANOVA and Kruskal Wallis tests were performed to analyze %Wsp and %Wsl ratios. Results: Tetric N-Ceram Bulk Fill showed the highest AE00 value in distilled water. Beautifil Bulk Fill had the highest AE00 value in coffee and cola. Beautifil Bulk Fill had the highest %Wsl ratio. Filtek One Bulk Fill and Tetric N -Ceram Bulk Fill had the highest and lowest %Wsp ratios, respectively. Coffee and cola exposure had surface property-disrupting and discoloration effects on both conventional and bulk-fill resins.eninfo:eu-repo/semantics/closedAccessWater-AbsorptionDepthCureArticle35138Q4WOS:0008932275000012-s2.0-8512685118235316584Q2