Effect of surface treatment and storage on the bond strength of different ceramic systems

• Main Authors: Fernando Carlos Hueb de Menezes (Author), Gilberto Antônio Borges (Author), Thiago Assunção Valentino (Author), Maria Angélica Hueb de Menezes Oliveira (Author), Cecília Pedroso Turssi (Author), Lourenço Correr-Sobrinho (Author)
• Format: Book
• Published: Universidade Estadual de Campinas, 2015-12-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 10.20396/bjos.v8i3.8642125; 1677-3225
• Keywords: Ceramics; Cementation; Surface treatment; Micro shear; Bond strength; Dentistry; RK1-715
• Source: Brazilian Journal of Oral Sciences, Vol 8, Iss 3 (2015)

Aim: The aim of this study was to evaluate the micro shear bond strength of different ceramic systems - IPS Empress 2, Cergogold, In-Ceram Alumina and Cercon - and a dual luting agent. Methods: Twelve specimens of each ceramic were fabricated and divided according different surface treatments: Group 1: No additional treatment was applied to the ceramic surface; Group 2: Ceramics were etched with 9.5% hydrofluoric acid; Group 3: specimens treated with airborne particle abrasion for each ceramic system in accordance with manufacturer's instructions (n=20). The tests were performed after 24 h or after water storage for 6 months. Data were then assessed statistically using the 3-way ANOVA and the Tukey's test (P<0.05). Results: For Cergogold and IPS Empress 2 systems, the treatments performed with airborne particle abrasion and hydrofluoric acid showed no significant differences from each other, and both were superior to the groups without treatment. For Cercon and In-Ceram ceramics, no differences were found among the groups (P<0.05). When the surface was treated with hydrofluoric acid, the highest bond strength was found to IPS Empress 2 in the 6-month storage period (P<0.05). Conclusion: Lower bond strength values were only observed with IPS Empress 2 ceramic for the control group in the 6-month storage (P<0.05).