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- Title
Effect of Water Storage on Bond Strength of Self-adhesive Resin Cements to Zirconium Oxide Ceramic.
- Authors
de Sá Barbosa, Wladimir Franco; Aguiar, Thaiane Rodrigues; Di Francescantonio, Marina; Cavalcanti, Andrea Nóbrega; de Oliveira, Marcelo Tavares; Giannini, Marcelo
- Abstract
Purpose: To evaluate the microshear bond strength of resin cements to yttrium-stabilized tetragonal zirconium oxide surfaces after water storage for 24 h or 1 year. Materials and Methods: Four self-adhesive (BisCem, G-Cem, RelyX Unicem, SeT) and one conventional resin cement (RelyX ARC) were tested. The materials were mixed and inserted in tubes (0.75 mm diameter X 1 mm height) that were placed over the zirconium oxide surface. Specimens were tested after 24-h or 1-year water storage. Microshear testing was performed using a universal testing machine. Shear bond strength results were analyzed using two-way ANOVA and Tukey's test (5%). Results: After 24-h water storage, no difference was found between G-Cem and RelyX Unicem resin cements; however, their bond strength means to zirconium oxide were statistically higher than RelyX ARC. The bond strength values of all resin cements dropped significantly after 1 year of water storage. G-Cem presented the highest values among cements after long-term water exposure. Conclusions: One-year water storage decreased the microshear bond strengths to zirconium oxide for all resin cements tested.
- Subjects
BOND strengths; DENTAL adhesives; ZIRCONIUM oxide; YTTRIUM; ANALYSIS of variance; TUKEY'S test; WATER storage; DENTAL resins
- Publication
Journal of Adhesive Dentistry, 2013, Vol 15, Issue 2, p145
- ISSN
1461-5185
- Publication type
Article
- DOI
10.3290/j.jad.a28733