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The influence of the photoinitiator system and reducing agents on physical properties of experimental resins photoactivated by LEDs

Grant number: 13/04241-2
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): July 01, 2013
Effective date (End): July 31, 2016
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal researcher:Mário Alexandre Coelho Sinhoreti
Grantee:Dayane Carvalho Ramos Salles de Oliveira
Home Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil
Associated scholarship(s):14/03028-6 - Optical properties and kinetics of conversion of dental composites made with alternative photoinitiator systems and cured with different light curing units, BE.EP.DR

Abstract

The aim of this study is to evaluate the influence of photoinitiator system and reducting agent on physical properties of experimental composite resins photoatctivated by different LED units. Thus, this study will be separated into two parts: Study A, in which one basic composite resin with Bis-GMA, UDMA, Bis-EMA, TEGDMA, coloidal sílica, barium aluminosilicate glass associated to different photoinitiator systems: CQ, PPD, TPO or BAPO with reducting amine range: DMAEMA, EDMAB, DMOH, DMPOH, TMA, DMPT, DEPT, DABE or sesamin as well as the inclusion of OPPI will be photoactived by Bluephase G2 (Ivoclar Vivadent) to evaluate the influence of the photoinitiator system/reducting agent on color stability and physical properties of the different experimental composite resins. Thereafter, on study B, the experimental composite resins better results on study will be photoactivated by different LED units: Radii Cal (SDI) or Bluephase G2 (Ivoclar Vivadent) to evaluate the influence of the espectral irradiance on the physical properties of the composite resin. The physical-mechanical properties will be tested by conversion degree, sorption, solubility, flexural resistance, elastic modulus, cohesive resistance and color stability by spectrophotometry after accelerated artificial aging. Data for each cement were analyzed by two-way or three-way ANOVA and Tukey test (± =0.05) by SAS 9.1 (SAS Institute, Cary, EUA). (AU)

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE OLIVEIRA, D. C. R. S.; ROCHA, M. G.; CORRER, A. B.; FERRACANE, J. L.; SINHORETI, M. A. C. Effect of Beam Profiles From Different Light Emission Tip Types of Multiwave Light-emitting Diodes on the Curing Profile of Resin-based Composites. Operative Dentistry, v. 44, n. 4, p. 365-378, JUL-AUG 2019. Web of Science Citations: 0.
ROCHA, M. G.; DE OLIVEIRA, D. C. R. S.; CORREA, I. C.; CORRER-SOBRINHO, L.; SINHORETI, M. A. C.; FERRACANE, J. L.; CORRER, A. B. Light-emitting Diode Beam Profile and Spectral Output Influence on the Degree of Conversion of Bulk Fill Composites. Operative Dentistry, v. 42, n. 4, p. 418-427, JUL-AUG 2017. Web of Science Citations: 9.
RAMOS SALLES DE OLIVEIRA, DAYANE CARVALHO; SOUZA-JUNIOR, EDUARDO JOSE; DOBSON, ADAM; COSTA CORRER, ANA ROSA; BRANDT, WILLIAM CUNHA; COELHO SINHORETI, MARIO ALEXANDRE. Evaluation of phenyl-propanedione on yellowing and chemical-mechanical properties of experimental dental resin-based materials. Journal of Applied Oral Science, v. 24, n. 6, p. 555-560, NOV-DEC 2016. Web of Science Citations: 3.
RAMOS SALLES DE OLIVEIRA, DAYANE CARVALHO; ROCHA, MATEUS GARCIA; CORREA, NO CARLOS; CORRER, AMERICO BORTOLAZZO; FERRACANE, JACK L.; COELHO SINHORETI, MARIO ALEXANDRE. The effect of combining photoinitiator systems on the color and curing profile of resin-based composites. Dental Materials, v. 32, n. 10, p. 1209-1217, OCT 2016. Web of Science Citations: 7.
RAMOS SALLES DE OLIVEIRA, DAYANE CARVALHO; DE MENEZES, LIVIA RODRIGUES; GATTI, ALEXANDRE; SOBRINHO, LOURENCO CORRER; FERRACANE, JACK L.; COELHO SINHORETI, MARIO ALEXANDRE. Effect of Nanofiller Loading on Cure Efficiency and Potential Color Change of Model Composites. Journal of Esthetic and Restorative Dentistry, v. 28, n. 3, p. 171-177, MAY-JUN 2016. Web of Science Citations: 8.
RAMOS SALLES DE OLIVEIR, DAYANE CARVALHO; ROCHA, MATEUS GARCIA; GATTI, ALEXANDRE; CORRER, AMERICO BORTOLAZZO; FERRACANE, JACK LIBORIO; COELHO SINHORETI, MARIO ALEXANDRE. Effect of different photoinitiators and reducing agents on cure efficiency and color stability of resin-based composites using different LED wavelengths. Journal of Dentistry, v. 43, n. 12, p. 1565-1572, DEC 2015. Web of Science Citations: 25.
DAYANE CARVALHO RAMOS SALLES DE OLIVEIRA; CAMILA BATISTA DA SILVA; BRUNO VILELA MUNIZ; MARIA C. VOLPATO; ANA ROSA COSTA; MARIO ALEXANDRE COELHO SINHORETI. Effect of 4-(N,N-dimethylamino)phenethyl Alcohol on Degree of Conversion and Cytotoxicity of Photo-Polymerized CQ-Based Resin Composites. Brazilian Dental Journal, v. 25, n. 6, p. 538-542, Dez. 2014.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.