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The Journal of Adhesive Dentistry



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J Adhes Dent 16 (2014), No. 3     16. June 2014
J Adhes Dent 16 (2014), No. 3  (16.06.2014)

Page 261-265, doi:10.3290/j.jad.a31938, PubMed:24779024

Association of Different Primers and Resin Cements for Adhesive Bonding to Zirconia Ceramics
Maeda, Fernando Akio / Bello-Silva, Marina Stella / Eduardo, Carlos de Paula / Miranda Junior, Walter Gomes / Cesar, Paulo Francisco
Purpose: To evaluate the shear bond strength (SBS) to zirconia ceramics using different associations of primers and resin cements.
Materials and Methods: Two blocks of LAVA zirconia (3Y-TZP) were randomly submitted to an application of three different commercially available primers: Alloy Primer (AP), Z-Prime Plus (ZP), and Signum Zirconia Bond (SZB). Nonprimed specimens were considered controls. After treatment, the 80 specimens (5 mm × 5 mm × 2 mm) were randomly cemented with one of the resin cements: Panavia F, Multilink, seT, and NX3. For cementation, cylinders of resin cement were built on the ceramic surfaces using the SDI SBS apparatus. The specimens were submitted to the SBS test. Fractured surfaces were observed under stereomicroscopy to determine the failure mode, and mean bond strength values were analyzed using the Kruskal-Wallis and Mann-Whitney tests (α = 0.05).
Results: Signum Zirconia Bond had the highest SBS compared to all other primers and the control group, regardless of the resin cement used. The highest values were obtained when associating Panavia F with Signum Zirconia Bond. Alloy Primer increased bonding values when associated with seT cement only. When no primer was used, no statistical difference was observed among resin cements. All specimens fractured due to adhesive failure.
Conclusion: Signum Zirconia Bond is capable of increasing bonding values of resin cements to zirconia ceramics. Its association with Panavia F shows enhanced results when considering short-term adhesion to zirconia.

Keywords: primers, resin cement, shear bond strength, zirconia