Evaluation of the resin-dentin bond using different approaches in dentin conditioning

• Grant number: 15/03927-3
• Support type: Scholarships in Brazil - Master
• Effective date (Start): June 01, 2015
• Effective date (End): February 28, 2017
• Field of knowledge: Health Sciences - Dentistry - Dental Clinics
• Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Marcelo Giannini
• Grantee: Maicon Sebold
• Home Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil

Abstract

The aims of this study will be to compare the effects of experimental conditioning agents (2.6% aluminum nitrate + 1.5% oxalic acid; 6.8% ferric oxalate and 1.4% HNO3) to the traditional technique to etch dentin (phosphoric acid) on resin-dentin bonding. For this evaluation, it will be used the microtensile bond strength test, failure pattern analysis in SEM, dentin microflexural test, morphology analysis of resin dentin area and collagen fibrils using confocal microscopy. For this confocal microscopy analysis, different dyes will be used to visualize the main structures of samples. For microtensile and morphological evaluations of dentin-resin bonding, two bonding agents containing different organic solvents will be tested in 10 experimental groups. For failure mode analysis, the tested samples will be coated with gold and classified according to the structures involved in the samples fractured areas. For collagen fibrils and flexural strength analysis, only the four conditioning techniques will be evaluated. For bond and flexural strengths, the parametric analysis will be used to evaluate the data (Anova and Tukey test), while for microscopy evaluations the descriptions of sample structures and their comparisons among groups will be done. (AU)

Scientific publications

(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)

SEBOLD, MAICON; ANDRE, CAROLINA BOSSO; CARVALHO, RICARDO MARINS; GIANNINI, MARCELO. Dry-bonding to dentin using alternative conditioners based on iron-containing solutions or nitric acid. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 94, p. 238-248, JUN 2019. Web of Science Citations: 0.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SEBOLD, Maicon. Dentin-resin bond evaluation using different dentin conditioning approaches. 2017. Master's Dissertation.