Microtensile bond strength to dentin surface sandblasted with Biosilicate® microparticles

• Grant number: 13/04321-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): August 01, 2013
• Effective date (End): July 31, 2014
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Michelle Alexandra Chinelatti
• Grantee: Egle Leitão dos Santos
• Host Institution: Faculdade de Odontologia de Ribeirão Preto (FORP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

This in vitro study aims to evaluate the microtensile bond strength to dentin sandblasted with Biosilicate®, and analyze the morphology of the adhesive interface. For the microtensile test, 30 bovine incisors will be selected and will have their roots and buccal surfaces separated; following, their enamel surfaces will be ground to expose the coronal dentin. After obtaining the dentin fragments, they will be randomly divided into three groups (n = 10) in accordance with the pre-surface treatment being carried out: a) sandblasting with Biosilicate®; b) microbrush with aqueous suspension of Biosilicate ®; c) microbrush with distilled water (control). Then the dentin surfaces will be restored with adhesive system / composite resin (Adper Single Bond 2 / Filtek Z-250). The sets tooth / resin will be sectioned in order to obtain sticks about 1 mm ², which will be submitted to microtensile test using a universal testing machine (0.5 mm / min, 50 kgf). Data obtained will be analyzed for their distribution to choose the most appropriate statistical method. For morphological analysis in Scanning Electron Microscopy (SEM), 9 dentin fragments (n = 3) will be obtained and restored as described above, in order to observe the morphology of the interface dentin / adhesive system.

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)

CHINELATTI, MICHELLE ALEXANDRA; SANTOS, EGLE LEITAO; TIRAPELLI, CAMILA; PANZERI PIRES-DE-SOUZA, FERNANDA CARVALHO. Effect of Methods of Biosilicate Microparticle Application on Dentin Adhesion. DENTISTRY JOURNAL, v. 7, n. 2, p. 8-pg., 2019-06-01. (13/04321-6, 11/12160-7)