Bond strength of the Y-TZP/ceramic veneer after surface treatment

• Grant number: 13/23464-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: March 01, 2014
• End date: December 31, 2014
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Ana Flávia Sanches Borges
• Grantee: Bruno Freitas Trevizo
• Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil

Abstract

The aim of this study is to evaluate the behavior of polycrystalline tetragonal zirconia partially stabilized with yttria (Y-TZP), with and without surface treatment against the shear bond with ceramic cover. This is to be carried out surface treatment with aluminum oxide abrasive 50¼m before and after sintering specimen totaling three groups (n = 10) C-ST (shear without surface treatment), C-PRE (shear pre-treated sintering) and C-POS (shear pos-treated sintering). For the shear test specimens are cut into disc format and receive a ceramic cover following the protocol of surface treatment for each group. The analysis of the type of fault coverage at the interface ceramic / Y-TZP after fractures will be performed in all specimens to receive the classification according to the type (s) (s) fail (s) observed (s): Failed adhesive (A), cohesive failure of the ceramic casing (C) or mixed when the two types of failures, adhesive / cohesive are present (CA). The results of bond strength will be submitted to two-way ANOVA (± = 0.05), and Tukey's test for comparison between groups. (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)

RAMOS-TONELLO, CARLA MULLER; TREVIZO, BRUNO FREITAS; RODRIGUES, RAPHAELA FARIAS; RODRIGUES MAGALHAES, ANA PAULA; FURUSE, ADILSON YOSHIO; LISBOA-FILHO, PAULO NORONHA; TABATA, AMERICO SHEITIRO; SANCHES BORGES, ANA FLAVIA. Pre-sintered Y-TZP sandblasting: effect on surface roughness, phase transformation, and Y-TZP/veneer bond strength. Journal of Applied Oral Science, v. 25, n. 6, p. 666-673, NOV-DEC 2017. (11/18061-0, 13/23464-2)

RAMOS-TONELLO, CARLA MULLER; TREVIZO, BRUNO FREITAS; RODRIGUES, RAPHAELA FARIAS; RODRIGUES MAGALHAES, ANA PAULA; FURUSE, ADILSON YOSHIO; LISBOA-FILHO, PAULO NORONHA; TABATA, AMERICO SHEITIRO; SANCHES BORGES, ANA FLAVIA. Pre-sintered Y-TZP sandblasting: effect on surface roughness, phase transformation, and Y-TZP/veneer bond strength. Journal of Applied Oral Science, v. 25, n. 6, p. 8-pg., 2017-11-01. (11/18061-0, 13/23464-2)