Int J Dent Hyg. 2026 Apr 3. doi: 10.1111/idh.70055. Online ahead of print.
ABSTRACT
BACKGROUND: This study assessed the impact of toothbrushing and exposure to cherry juice on the discoloration of various restorative materials commonly used in paediatric dentistry.
METHODS: Forty specimens of each of the three types of restorative material (compomer, resin-modified glass ionomer cement and composite) were prepared. The specimens were immersed in cherry juice and distilled water for 10 days, forming two subgroups (brushed and unbrushed) within each material group (n = 10). The brushed samples were treated every 8 h for 1 min daily over 10 days. The colour change was measured at baseline and after 10 days, and the data were analysed using three-way ANOVA and Tamhane’s T2 post hoc test.
RESULTS: After 10 days, the brushed, cherry juice-soaked resin-modified glass ionomer cement exhibited the highest ΔE00 value (13.91 ± 2.9), while the lowest value was observed in the unbrushed, distilled water-soaked microhybrid composite (0.90 ± 0.46). Statistically significant differences were found between materials (p < 0.001), brushed and unbrushed (p = 0.005), and cherry juice- and distilled water-soaked (p < 0.001).
CONCLUSION: Brushing and the consumption of colouring negatively influence the colour stability of restorative materials. The composites demonstrate greater resistance to discoloration from brushing and exposure to coloured beverages.
PMID:41930404 | DOI:10.1111/idh.70055
