Randomized trial evaluates how staining beverages affect color and surface of resin materials, suggesting practical implications for dental restorations.
Key Points
This study aims to assess how staining beverages impact the color stability and surface roughness of resin restorative materials.
Sixty disk-shaped specimens were fabricated from two resin materials.
Specimens immersed in tea, coffee, or distilled water for 14 days with daily solution renewal.
Data analyzed using mixed-model ANOVA and correlation tests.
Tea caused the highest discoloration, followed by coffee, both significantly affecting color change (p < 0.001).
Surface roughness changes were minimal after immersion with Ra values showing no significant effects (p > 0.05).
A significant positive correlation exists between surface roughness change and color change (p < 0.05).