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Influence of the incorporation of TiO2 nanotubes in the depth of polymerization of bulk fill resin composites compared to a conventional fluid resin

Grant number: 16/03446-8
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2016
Effective date (End): November 30, 2016
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal researcher:Adilson Yoshio Furuse
Grantee:Bianca Rodrigues Terrabuio
Home Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil

Abstract

The incorporation of nanostructures such as TiO2 nanotubes to resin-based materials has shown promising results and may improve properties such as hardness and degree of conversion. This project aims to evaluate the influence of the incorporation of TiO2 nanotubes in the depth of polymerization of bulk-fill resin composites compared to a conventional fluid resin. Two bulk-fill resin composites (SDR Surefil, Dentsply, color U, and Filtek Bulk Fill Flow, 3M Espe, color A1) and a conventional fluid resin composite (Filtek Z350XT Flow, 3M Espe, color A1) will be evaluated. Before photopolymerization, 0.2wt% of TiO2 nanotubes will be incorporated into the resins. As a control, the nanotubes will not be incorporated. The depth of polymerization will be evaluated by microhardness, using a specially developed matrix. Data will be analyzed by three-way Anova and Tukey (± = 0.05).

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