Color stability of restorative materials against commonly consumed beverages in children: In vitro study

This study evaluated the effect of different beverages on the color stability of dental restorative materials used in pediatric dentistry. A nanohybrid composite resin, a glass ionomer cement, and a resin-modified glass ionomer cement were tested. Fifty specimens of each material were prepared, polished, and randomly assigned to five groups immersed in distilled water (control), chocolate milk, orange juice, orange juice with probiotics and energy drink for seven days at 37°C. Color parameters (L*, a*, b*) were measured at baseline and after exposure using a UV-Vis spectrophotometer. For color changes evaluation, ΔE00 values were calculated according to CIEDE2000 formula. The obtained data were subjected to statistical analysis by setting the significance level at p-value≤0.05. The energy drink and orange juice caused significant discoloration, with the highest ΔE values in resin-modified glass ionomer cement and the lowest in the nanohybrid composite resin. Nanohybrid composite resin exhibited superior color stability, while the energy drink caused the most discoloration.