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Materials 2015, 8(12), 8087-8096;

Influence of Hot-Etching Surface Treatment on Zirconia/Resin Shear Bond Strength

Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
Author to whom correspondence should be addressed.
Academic Editor: Jérôme Chevalier
Received: 9 September 2015 / Revised: 20 October 2015 / Accepted: 2 November 2015 / Published: 30 November 2015
(This article belongs to the Section Manufacturing Processes and Systems)
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This study was designed to evaluate the effect of hot-etching surface treatment on the shear bond strength between zirconia ceramics and two commercial resin cements. Ceramic cylinders (120 units; length: 2.5 mm; diameter: 4.7 mm) were randomly divided into 12 groups (n = 10) according to different surface treatments (blank control; airborne-particle-abrasion; hot-etching) and different resin cements (Panavia F2.0; Superbond C and B) and whether or not a thermal cycling fatigue test (5°–55° for 5000 cycles) was performed. Flat enamel surfaces, mounted in acrylic resin, were bonded to the zirconia discs (diameter: 4.7 mm). All specimens were subjected to shear bond strength testing using a universal testing machine with a crosshead speed of 1 mm/min. All data were statistically analyzed using one-way analysis of variance and multiple-comparison least significant difference tests (α = 0.05). Hot-etching treatment produced higher bond strengths than the other treatment with both resin cements. The shear bond strength of all groups significantly decreased after the thermal cycling test; except for the hot-etching group that was cemented with Panavia F2.0 (p < 0.05). Surface treatment of zirconia with hot-etching solution enhanced the surface roughness and bond strength between the zirconia and the resin cement. View Full-Text
Keywords: hot-etching; shear bond strength; zirconia hot-etching; shear bond strength; zirconia

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lv, P.; Yang, X.; Jiang, T. Influence of Hot-Etching Surface Treatment on Zirconia/Resin Shear Bond Strength. Materials 2015, 8, 8087-8096.

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