Effect of remineralizing agents on surface roughness of demineralized enamel

Introduction: Enamel surface roughness affects its visual properties, plaque retention, abrasion and bond strength. The aim of this study was to determine surface roughness of enamel lesions treated with Casein Phosphopeptide-Amorphus Calcium Phosphate (CPP-ACP), fluoride and a combination of these two. Materials & Methods: In this experimental study, 24 sound bovine anterior teeth were mounted in acrylic resin after decoronation. Then the samples were demineralized and divided into 4 groups: treatment with CPP-ACP, CPP-ACPF and fluoride mouthwash, fluoride mouthwash and control. After treatment, the surface roughness of each group was determined. Data were analyzed with one-way ANOVA, followed by Duncan post hoc tests (α = 0.05). Results: The surface roughness of the control group was significantly higher than that in other treatment groups (p value = 0.011). Conclusion: The results showed that treatment with all the three remineralizing agents significantly reduced surface roughness. Key words: CPP-ACP, Dental enamel, Fluorides, Surface properties, Tooth demineralization, Tooth remineralization.