Comparative Evaluation of Microhardness in Bleached Enamel Using Nano Silver Fluoride and Casein Phosphopeptide–Amorphous Calcium Phosphate Fluoride as Remineralizing Agents: An In Vitro Study
Citation Information :
CK A, Ninawe NS, Honaje NV. Comparative Evaluation of Microhardness in Bleached Enamel Using Nano Silver Fluoride and Casein Phosphopeptide–Amorphous Calcium Phosphate Fluoride as Remineralizing Agents: An In Vitro Study. World J Dent 2024; 15 (10):832-836.
Aim: The aim of this study was to evaluate and compare microhardness in bleached enamel using nano silver fluoride (NSF) and casein phosphopeptide–amorphous calcium phosphate fluoride (CPP–ACPF) as remineralizing agents.
Materials and methods: The study population consisted of premolar teeth, which were subsequently divided into two distinct groups. Initially, the baseline surface microhardness of tooth samples was assessed using a Vickers microhardness tester, applying a 300 gm load. Within each group, the samples underwent a bleaching procedure with 35% hydrogen peroxide. Following the postbleaching microhardness assessment, one group received treatment with CPP–ACPF, while the other group was treated with NSF. Subsequently, the microhardness test was repeated for further analysis.
Results: After bleaching, the surface microhardness of the teeth was reduced, and microhardness increased significantly after remineralization with CPP–ACPF and NSF.
Conclusion: The enamel hardness of bleached teeth increased after remineralization with both CPP–ACPF and NSF, and no significant difference was observed between the two groups.
Clinical significance: Bleaching is the best conservative treatment for a discolored tooth. Hence, as it reduces microhardness of teeth, it is important to apply a remineralizing agent after bleaching.
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