Serviços Personalizados
Journal
Artigo
Indicadores
Citado por SciELO
Acessos
Links relacionados
Citado por Google
Similares em SciELO
Similares em Google
Compartilhar
Revista Facultad de Odontología Universidad de Antioquia
versão impressa ISSN 0121-246X
Resumo
MARTINEZ-GALEANO, German; BAUTISTA-LORA, Alfonso; PACHECO-MUNOZ, Luisa Fernanda e GARZON-RAYO, Herney. LINER EFFECT ON THE BOND STRENGTH OF FELDSPATHIC CERAMIC TO ZIRCONIA USING A SLOW COOLING PROTOCOL. Rev Fac Odontol Univ Antioq [online]. 2015, vol.27, n.1, pp.63-75. ISSN 0121-246X. https://doi.org/10.17533/udea.rfo.v27n1a3.
Introduction:
the aim of this study was to compare the influence of a liner on veneering porcelain bond strength to two zirconia systems using a slow cooling protocol.
Methods:
twenty zirconia blocks were fabricated (12 x 11 x 4 mm), sintered, and layered with a veneering porcelain (5 x 11 x 4 mm, IPS e.max Ceram, Ivoclar Vivadent) using a slow cooling protocol. Four groups were evaluated: IPS e.max ZirCAD (Ivoclar Vivadent) with liner (IL) and without liner (IX), and Ecco-Zirconia (Amann Girrbach) with liner (EL) and without liner (EX) liner. Shear bond strength (SBS) test was conducted and failure modes were recorded.
Results:
the one-way ANOVA test yielded no significant statistical differences among the four groups (p = 0.662). The mean SBS values (±SD) in MPa were 15.2 (±1.7) MPa for EX, 15.3 (±2.0) MPa for EL, 16.4 (±4.2) MPa for IX, and 13.5 (±1.4) MPa for IL. All the samples showed a combined adhesive/cohesive failure.
Conclusions:
application of a liner did not alter the bond strength between veneering porcelain and zirconia when using a slow cooling protocol. No differences were found among the tested zirconia blocks.
Palavras-chave : zirconia; ceramics; liner.