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Degree of conversion of bulk fill composites at different depths

Grant number: 11/21161-7
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2012
Effective date (End): April 30, 2013
Field of knowledge:Health Sciences - Dentistry - Dental Clinics
Principal Investigator:Edson Alves de Campos
Grantee:Lívia Bueno Campi
Host Institution: Faculdade de Odontologia (FOAr). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil


The aim of this study is to evaluate the degree of monomer conversion of different composites indicated to be inserted in increments of large volumes/thicknesses (bulk-fill). The following 'bulk-fill' composites will be tested': SDRTM, SonicFillTM System, Venus Bulk Fillè and Tetric Evo Ceramè Bulk Fill. Additionally will be tested conventional composites (Tetric EvoCeramè and Venusè) are indicated for use in association with 'bulk-fill' composites, besides Ceram-XTM composite, also suitable for conventional composite restorations in anterior and posterior teeth. To analyze the degree of conversion will be made cylindrical specimens with the above materials (n = 10), were divided into the depths of polymerization of 1, 2, 3, and 4 mm. These specimens will be triggered, pressed with potassium bromide, and analyzed under Fourier transform infrared spectroscopy (FT-IR). The results will be analyzed using statistical tests most appropriate to the type of data distribution. (AU)

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