Methods: In our study, four different composite materials (Admira, Herculite XRV Intens-s, Tetric Ceram), acrylic resin materials[(two of them heat cured (Paladent, Meliodent), two of them self cured (Paladent, Meliodent)] and soft lining materials[two of them heat cured (Luci- Soft, Molloplast B), two of them self cure (Ufi Gel P, Mollosil)], four different mouth rinses ( Heksoral, Tantum Verde, Klorheks, Oral B) and distilled water as control group were used. Samples were fabricated in 3 mm thickness and 10 mm diameter. Each of samples were measured for color before the application of mouth rinses. Color measurements were made after the application of mouth rinses at the end of 6 th 12 th, 24 th, 48th and 72 th hours. Color was measured at baseline, after staining, and after treatment using the CIE L*a*b* color system relative to CIE Standard illuminant A (incandescent light) as measured by a reflection spectrophotometer. Data were analyzed with Friedman and Kruskal Wallis test (p<.05).
Results: Admira showed the least color change in all solutions (DE=0-2) while Herculite XRV showed the highest color changes in Heksoral solution (DE=2.3-3). The highest color change of self-cured acrilic resin materials were in oral B solution (DE=4.1-4.3). The highest color change of soft lining materials were Molloplast B in Klorheks solution (DE=3.7-5.9)
Conclusions: As the result, Admira has shown the least color change. The material which has shown the most color change is self cure materials in Oral B solution and Mollaplast B in Klorheks solution.