Effect of testing methods on the bond strength of resin to zirconia-alumina ceramic: microtensile versus shear test


Autoria(s): Valandro, Luiz F.; Ozcan, Mutlu; Amaral, Regina; Vanderlei, Aleska; Bottino, Marco A.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/11/2008

Resumo

This study tested the bond strength of a resin cement to a glass-infiltrated zirconia-alumina ceramic after three conditioning methods and using two test methods (shear-SBS versus microtensile-MTBS). Ceramic blocks for MTBS and ceramic disks for SBS were fabricated. Three surface conditioning (SC) methods were evaluated: (1) 110-mu m Al(2)O(3)+Silanization; (2) Chairside silica coating+silanization: (3) Laboratory silica coating+silanization. Following surface conditioning, the resin cement (Panavia F) was bonded to the conditioned ceramics. Although no statistically significant differences (p=0.1076) were seen between the test methods, results yielded with the different surface conditioning methods showed statistically significant differences (p<0.0001) (SC2=SC3>SC1.). As for the interaction between the factors, two-way ANOVA showed that it was not statistically significant (p=0.1443). MTBS test resulted in predominantly mixed failure (85%), but SBS test resulted in exclusively adhesive failure. on the effects of different surface conditioning methods, chairside and laboratory tribochemical silica coating followed by silanization showed higher bond strength results compared to those of aluminum oxide abrasion and silanization, independent of the test method employed.

Formato

849-855

Identificador

http://dx.doi.org/10.4012/dmj.27.849

Dental Materials Journal. Tokyo: Japanese Soc Dental Materials Devices, v. 27, n. 6, p. 849-855, 2008.

0287-4547

http://hdl.handle.net/11449/22845

10.4012/dmj.27.849

WOS:000265298400014

Idioma(s)

eng

Publicador

Japanese Soc Dental Materials Devices

Relação

Dental Materials Journal

Direitos

openAccess

Palavras-Chave #Microtensile test #Shear test #Zirconia
Tipo

info:eu-repo/semantics/article