Effect of Different Beverages and Brushing on Color Stability of Two Different Dental Resin Composites

Abstract

Aim: To evaluate the effect of different beverages, with and without brushing, on the color stability of a nanohybrid resin composite and an ormocer. Materials and methods: Two dental resin composites were used: Admira Fusion (ormocer) and Grandio (nanohybrid resin composite). Four beverages were used: Nescafe Classic, red wine, Pepsi Cola, and artificial saliva. Eighty specimens from each composite were prepared, divided into brushing and non-brushing groups, and further subdivided according to the used beverage. The baseline color measurements were done after 24 hours. For the non-brushing group, the specimens were immersed in the different beverages for 5 minutes three times daily. For the brushing group, the same procedure was done, in addition to brushing the specimens for 5 seconds 1 hour after the last immersion cycle. The color measurements were repeated after 30 days. The one-way analysis of variance and independent t-tests were used for statistical analysis. Results: Nescafe Classic yielded the highest ΔE while artificial saliva yielded the least. Both Nescafe Classic and red wine produced ΔE of more than 3.3. Brushing tended to decrease ΔE. Admira Fusion exhibited less ΔE than Grandio in all tested beverages. Conclusion: Both restorative materials used were susceptible to staining by commonly consumed beverages. Clinical significance: Commonly consumed beverages cause undesirable color changes to different resin composites.