Do Sugary Drinks Color Bulk-Fill Composİte More?

Objectives This in vitro study evaluated the color stability of a bulk-fill resin composite (Filtek One Bulk Fill) after immersion in five media: distilled water, tea, coffee, tea with added sugar, and coffee with added sugar. Material and Methods Fifty disc-shaped specimens were prepared and randomly assigned to 5 groups (n = 10). All specimens were kept in distilled water at 37 °C for 24 h to ensure hydration. Baseline color measurements were recorded using a spectrophotometer. The groups were immersed for 14 days in solutions, refreshed daily: distilled water (con trol); tea (T), made by Yellow Label Tea (Lipton, Rize, Türkiye), filtered; coffee (C), Nescafé Classic (Nestlé, Switzerland); tea with sugar (TS), as100 mL tea with 5 gr sugar dissolved; coffee with sugar (CS), as 100 mL coffee with 5 gr sugar dissolved. Color changes (ΔE00) were measured using a spectrophotometer. Data normality was tested with the Shapiro-Wilk test, followed by One-Way ANOVA and Tukey’s Post-Hoc test (P < 0.05). Results All test groups showed significantly greater discoloration than the control group (P < 0.05). The TS group exhibited the highest color change (ΔE00 = 12.35 ± 2.03), sig nificantly different from other groups (P < 0.05). The T group (ΔE00 = 9.28 ± 2.34) displayed more staining than the C group (ΔE00 = 6.93 ± 2.04), while C and CS groups (ΔE00 = 8.82 ± 3.26) showed statistically similar staining levels (P > 0.05). Conclusion The addition of sugar to tea significantly increased discoloration of Filtek One Bulk Fill resin composite, with the tea with sugar group showing the highest color change. In contrast, sugar addition to coffee had no significant effect on staining. These findings indicate that sweetened tea consumption may notably compromise the esthetic longevity of bulk-fill composite restorations, suggesting the need for dietary considerations in patients with such restorations to maintain their color stability.