Effect of Surface Treatment on Shear Bond Strength between Resin Cement and Ce-TZP-Al2O3Reportar como inadecuado




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BioMed Research International - Volume 2016 2016, Article ID 7576942, 7 pages -

Research Article

Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea

Department of Conservative Dentistry, Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea

Received 1 February 2016; Revised 28 April 2016; Accepted 22 May 2016

Academic Editor: Salvatore Sauro

Copyright © 2016 Jong-Eun Kim et al. 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.

Abstract

Purpose. Although several studies evaluating the mechanical properties of Ce-TZP-Al2O3 have been published, to date, no study has been published investigating the bonding protocol between Ce-TZP-Al2O3 and resin cement. The aim of this study was to evaluate the shear bond strength to air-abraded Ce-TZP-Al2O3 when primers and two different cement types were used. Materials and Methods. Two types of zirconia Y-TZP and Ce-TZP-Al2O3 specimens were further divided into four subgroups according to primer application and the cement used. Shear bond strength was measured after water storage for 3 days or 5,000 times thermocycling for artificial aging. Results. The Y-TZP block showed significantly higher shear bond strength than the Ce-TZP-Al2O3 block generally. Primer application promoted high bond strength and less effect on bond strength reduction after thermocycling, regardless of the type of cement, zirconia block, or aging time. Conclusions. Depending on the type of the primer or resin cement used after air-abrasion, different wettability of the zirconia surface can be observed. Application of primer affected the values of shear bond strength after the thermocycling procedure. In the case of using the same bonding protocol, Y-TZP could obtain significantly higher bond strength compared with Ce-TZP-Al2O3.





Autor: Jong-Eun Kim, Jee-Hwan Kim, June-Sung Shim, Byoung-Duck Roh, and Yooseok Shin

Fuente: https://www.hindawi.com/



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