Er,Cr:YSGG laser irradiation influence on Y-TZP bond strength to resin cement

Autor(es)

Aras, Wanessa M. F. ; Barroso, Juliana S. M. ; Blay, Alberto ; Rodrigues, Jose Augusto ; Cassoni, Alessandra

• Tipo de documento: Artigo Científico
• Fonte: CERAMICS INTERNATIONAL; v. 42, n. 12, p. 13790-13795, SEP 2016.
• Citações Web of Science: 4

Resumo

The aim of this study was to evaluate Y-TZP surface pretreatment with different protocols on microshear bond strength (mu SBS) ceramic-cement interface. One hundred and sixty pre-sintered IFS e-max ZirCAD (Ivoclar-Vivadent) blocks were randomly divided into sixteen groups according to surface treatment (n=20): G1- no treatment (control); G2- ceramic primer; G3- tribochemical silica coating; G4- tribochemical silica coating+primer; G5- airborne particle abrasion (Al2O3); G6- airborne particle abrasion (Al2O3)+primer; G7- Er,Cr:YSGG laser; G8- Er,Cr:YSGG laser+primer. All specimens were sintered before surface treatment, except lasers groups, which were sintered after laser irradiation. Ceramic blocks were bonded with Panavia F resin cement (Kuraray, Okayama, Japan) (n=10) or RelyX ARC (3M ESPE, St. Paul, MN, USA) (n=10). The mu SBS tests were carried out in a universal testing machine at a speed of lmm/min after 24 h (n=5) or 6 months storage (n=5). Differences were found for both resin cements and storage conditions in relation to mu SBS values (p < 0.05). However, no significant difference for interaction between factors was observed in cemented blocks with RelyX ARC. Panavia F resin cement showed significant differences for interaction between factors (p < 0.05). Laser treatment was not sufficient to increase mu SBS values between Y-TZP and resin cements. Tribochemical silica coating followed by primer achieved the highest immediate mu SBS values. The storage did not affect negatively mu SBS values to both evaluated cements. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved. (AU)

• Processo FAPESP: 12/14839-0 - Avaliação de tratamentos de superfície cerâmica para cimentação adesiva
• Beneficiário: Alessandra Cassoni Ferreira
• Modalidade de apoio: Auxílio à Pesquisa - Regular