Evaluation of Bonding Resistance after Surface Treatment of Two Glass-Ceramics Used in Dentistry

Abstract:

The goal of this study was to evaluate the bonding resistance of two dental ceramics. The samples, one of each type of ceramics, were split into 4 groups (n=4) separated from those from control group, the others were conditioned with 5% hydrofluoric acid, according to the times of 20, 40 and 60 seconds. Cylindrical pins of resin cement were applied in each sample. After a shearing test, the obtained results showed that experimental groups has given higher bonding strength values than the control groups for both ceramics. For the e.max ceramic, the highest values were observed with timings of 20 and 40 seconds and for the Suprinity ceramic the conditioning timings were insignificant. The authors concluded that the surface treatment with hydrofluoric acid improved the bonding strength for both ceramics; and the e.max ceramic showed higher bonding values than the Suprinity.

• Periodical: Materials Science Forum (Volume 912)
• Pages: 165-169
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.912.165
• Online since: January 2018
• Authors: Cláudio Luis Melo-Silva*, Tereza Cristina Favieri de Melo-Silva, Cristiane Fonseca de Carvalho, Ágatha Borges Teixeira, E.C. Carvalho, A.S. Carvalho, F.A. Araujo, Jayme Pereira de Gouvêa, Jefferson Fabrício Cardoso Lins
• Keywords: Ceramics, Lithium Disilicate, Zirconia-Reinforced Lithium Silicate

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