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2. In Situ Response of Nanostructured Hybrid Fluoridated Restorative Composites on Enamel Demineralization, Surface Roughness and Ion Release.

Author

Melo MA, Codes BM, Passos VF, Lima JP, and Rodrigues LK

Subjects
Adult, Animals, Biofilms, Bisphenol A-Glycidyl Methacrylate chemistry, Cariostatic Agents chemistry, Cattle, Dental Restoration, Permanent classification, Diffusion, Female, Fluorides chemistry, Hardness, Humans, Male, Nanoparticles chemistry, Prospective Studies, Surface Properties, Cariostatic Agents administration & dosage, Composite Resins chemistry, Dental Enamel drug effects, Dental Materials chemistry, Fluorides administration & dosage, Nanocomposites chemistry, Tooth Demineralization prevention & control
Abstract

Recurrent caries at the tooth-restoration margins is the main reason for composite failure. Fluoride-releasing nanohybrid composite resin may reduce the recurrent caries rates. A fluoride-releasing resin (FCR) and non-fluoride-releasing resin (CR) were tested using an in situ model. Demineralization (ΔS), ion release and surface roughness of composite specimens were determined. The F concentration in the group FCR was higher than the CR group. ΔS (Mean ± SD) was 2579 ± 1582 and 1705 ± 1292, respectively, for FCR and CR. Surfaces roughness was altered by biofilm accumulation. The hybrid fluorated restorative composites containing nanoparticles have a slight anticaries action without alteration of surface smoothness of the material.

Published
2014

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