Abstract
This study describes the effects of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) paste on the surface roughness of resin-modified glass ionomer cement (RM-GIC) immersed in Coca-Cola® for 30 min. RM-GIC specimens were evaluated under different conditions: immersion in aquabidest (control, group 1); immersion in Coca-Cola® (group 2); immersion in Coca-Cola® immediately after smearing with CPP-ACP paste (group 3); and immersion in Coca-Cola® 30 min after smearing with CPP-ACP paste (group 4). There was a significant increase in the surface roughness of the specimens in group 2, an obvious but insignificant decrease in the surface roughness of the specimens in group 3, and a significant decrease in the surface roughness of the specimens in group 4. The results showed that the treatment of RM-GIC specimens with CPP-ACP paste with or without a 30-min delay results in no significant change in surface roughness from immersion in Coca-Cola®.
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