Development and characterization of dental resin materials photoactivated under WAVELENGHS between 495 and 750 nm

• Grant number: 17/22161-7
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: March 01, 2018
• End date: February 28, 2019
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Mário Alexandre Coelho Sinhoreti
• Grantee: Dayane Carvalho Ramos Salles de Oliveira
• Supervisor: Jean-Francois Roulet
• Host Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil
• Institution abroad: University of Florida, Gainesville (UF), United States
• Associated to the scholarship: 16/05823-3 - LOW INTENSITY LIGHT-CURING UNITS AND PHOTOINITIATION SYSTEMS ACTIVATED UNDER WAVELENGHS IN BETWEEN 495-750 NM FOR DENTAL RESIN MATERIALS, BP.PD

Abstract

Objectives: Development and characterization of dental resin materials photoactivated under long wavelengths (between 495 and 750 nm) and its benefits. Material and Methods: Different resin-based dental materials will be mechanically blended in order to formulate an adhesive system, a resin luting cement, a regular restorative resin composite and a bulk fill composite. To these different experimental resin materials, alternative photoinitiators synthetized in the FAPESP #2016/05823-3 post-doctoral research project will be added. Camphorquinone will be used as control. Infrared microspectroscopy will be used to map cure efficiency of the different resin materials through simulated direct and indirect dental restorations. During the restorative procedures, thermal images inside the pulpal chamber will be recorded by an infrared camera to evaluate temperature change. Withal, light-transmittance through the restorations till the pulpal chamber will be recorded by spectrophotometry. Finally, the long wavelengths effects on the modulation of the inflammatory process of odontoblastic-like cells will be assessed. Data will be analyzed according to the different experimental designs (±=0.05 and =0.2). Power analysis will be conducted to determine sample size for each experiment to provide a power of at least 0.8.

Scientific publications

(8)

(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)

JAMILLE FAVARÃO; DAYANE CARVALHO RAMOS SALLES DE OLIVEIRA; MATEUS GARCIA ROCHA; MAURÍCIO MATTÉ ZANINI; GABRIEL FLORES ABUNA; MARCIO JOSÉ MENDONÇA; MÁRIO ALEXANDRE COELHO SINHORETI. Solvent Degradation and Polymerization Shrinkage Reduction of Resin Composites Using Isobornyl Methacrylate. Brazilian Dental Journal, v. 30, n. 3, p. 272-278, 2019-06-03. (16/06019-3, 16/05823-3, 17/22161-7, 17/22195-9)

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. (17/22195-9, 16/06019-3, 16/05823-3, 14/03028-6, 17/22161-7, 13/04241-2)

FAVARAO, J.; OLIVEIRA, D. C. R. S.; ZANINI, M. M.; ROCHA, M. G.; CORRER-SOBRINHO, L.; SINHORETI, M. A. C.. Effect of curing-light attenuation on color stability and physical and chemical properties of resin cements containing different photoinitiators. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 113, JAN 2021. (17/22161-7, 17/22195-9, 16/06019-3, 16/05823-3)

LARA, LUCAS; ROCHA, MATEUS GARCIA; DE MENEZES, LIVIA RODRIGUES; CORRER, AMERICO BORTOLAZZO; COELHO SINHORETI, MARIO ALEXANDRE; OLIVEIRA, DAYANE. Effect of combining photoinitiators on cure efficiency of dental resin-based composites. Journal of Applied Oral Science, v. 29, p. 1-9, 2021. (17/22161-7, 17/22195-9, 16/06019-3, 16/05823-3)

ROCHA, MATEUS GARCIA; DE OLIVEIRA, DAYANE CARVALHO RAMOS SALLES; DE MENEZES, LIVIA RODRIGUES; ROULET, JEAN-FRANCOIS; SINHORETI, MARIO ALEXANDRE COELHO; CORRER, AMERICO BORTOLAZZO. he use of an elastomeric methacrylate monomer (Exothane 24) to reduce the polymerization shrinkage stress and improve the two-body wear resistance of bulk fill composite. Dental Materials, v. 38, n. 2, p. E43-E57, FEB 2022. (17/22195-9, 16/05823-3, 17/22161-7)

FAVARAO, JAMILLE; RAMOS SALLES DE OLIVEIRA, DAYANE CARVALHO; ZANINI, MAURICIO MATTE; ROCHA, MATEUS GARCIA; OGLIARI, FABRICIO AULO; CORRER-SOBRINHO, LOURENCO; COELHO SINHORETI, MARIO ALEXANDRE. Effect of light attenuation through veneers on bond strength of adhesives with photoinitiator combinations. BRAZILIAN ORAL RESEARCH, v. 36, p. 15-pg., 2022-01-01. (17/22195-9, 16/06019-3, 17/22161-7, 16/05823-3)

JAMILLE FAVARÃO; DAYANE CARVALHO RAMOS SALLES DE OLIVEIRA; MAURICIO MATTÉ ZANINI; MATEUS GARCIA ROCHA; FABRÍCIO AULO OGLIARI; LOURENÇO CORRER-SOBRINHO; MÁRIO ALEXANDRE COELHO SINHORETI. Effect of light attenuation through veneers on bond strength of adhesives with photoinitiator combinations. Brazilian Oral Research, v. 36, 2022-06-10. (16/06019-3, 16/05823-3, 17/22161-7, 17/22195-9)

ROCHA, M. G.; DE OLIVEIRA, D. C. R. S.; SINHORETI, M. A. C.; ROULET, J. F.; CORRER, A. B.. The Combination of CQ-amine and TPO Increases the Polymerization Shrinkage Stress and Does Not Improve the Depth of Cure of Bulk-fill Composites. Operative Dentistry, v. 44, n. 5, p. 499-509, SEP-OCT 2019. (17/22161-7, 16/05823-3, 17/22195-9)