Objectives– The aim of this in vitro study was to investigate the amount of change in color and color parameters of composite resin materials after immersing in various beverages.

Materials and Method–50 disk samples of each composite material (n=100) were prepared of diameter 1cm and thickness of approximately 2mm. Polymerization was carried out by LED light–curing unit Elipar free light 2(3M ESPE, St. Paul, MN, USA) with light intensity of 1000mWcm2 , using 20 seconds of exposure. Specimens were divided into 2 groups– Group 1 (Charisma) and Group 2(Filtek Z350) and again subdivided into 5 groups according to the bevarages– Tea, Coffee, Coke, Wine, Turmeric solution. A Spectrophotometer was used to evaluate the color change after immersing the specimens in respective solutions for 8 days. The color differences (ΔE) were analyzed by paired t–test and one–way ANOVA with complementary Tukey test (p<0.05).

Results– The two restorative materials were evaluated, Filtek Z350 showed lowest staining than Charisma Smart.Among Tea, Coffee, Wine, Coke and Turmeric solution, Coke stained the most.

Conclusion– Within the limitation of this invitro study, it can be concluded that all solutions used in this study affected the color stability of tested composite materials.