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

摘要

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 (AS), ion release and surface roughness of composite specimens were determined. The F concentration in the group FCR was higher than the CR group. AS (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.