title: In Situ Response of Nanostructured Hybrid Fluoridated Restorative Composites on Enamel Demineralization, Surface Roughness and Ion Release.
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.
authors.forename: Mary A S
authors.initials: MA
authors.lastname: Melo
authors.forename: Bruna M
authors.initials: BM
authors.lastname: Codes
authors.forename: Vanara F
authors.initials: VF
authors.lastname: Passos
authors.forename: Juliana P M
authors.initials: JP
authors.lastname: Lima
authors.forename: Lidiany K A
authors.initials: LK
authors.lastname: Rodrigues
mesh_terms: D000328:Adult; D000818:Animals; D018441:Biofilms; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D002327:Cariostatic Agents / Q000008:administration & dosage* / Q000737:chemistry; D002417:Cattle; D003188:Composite Resins / Q000737:chemistry*; D003743:Dental Enamel / Q000187:drug effects*; D003764:Dental Materials / Q000737:chemistry*; D003793:Dental Restoration, Permanent / Q000145:classification; D004058:Diffusion; D005260:Female; D005459:Fluorides / Q000008:administration & dosage* / Q000737:chemistry; D006244:Hardness; D006801:Humans; D008297:Male; D053761:Nanocomposites / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry; D011446:Prospective Studies; D013499:Surface Properties; D017001:Tooth Demineralization / Q000517:prevention & control*
chemical_list: D002327:Cariostatic Agents; D003188:Composite Resins; D003764:Dental Materials; C121818:Tetric ceram; C115612:single bond; D017438:Bisphenol A-Glycidyl Methacrylate; D005459:Fluorides