Research Article
Volume 20 Issue 3 - 2021
Shear Bond Strength of Feldspathic and Heat-Pressed Ceramics to Co-Cr Alloy and Zirconia Specimens
Filippatos Gerasimos1*, Sarafianou Aspasia2, Kourtis Stefanos3 and Tripodakis Aris Petros4
1Department of Fixed Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Greece
2Assistant Professor, Department of Fixed Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Greece
3Associate Professor, Department of Fixed Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Greece
4Professor Emeritus, Department of Fixed Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Greece
*Corresponding Author: Filippatos Gerasimos, Department of Fixed Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Greece.
Received: November 11, 2020; Published: February 27, 2021




Abstract

Aim: The aim of the present study was to investigate the shear strength of the bond between feldspathic and heat-pressed ceramic on Co-Cr alloy and zirconium substrate.

Materials and Methods: For the experimental procedure 54 disk-shaped specimens were fabricated from a metal alloy and zirconium, that served as substrates. Group A included 27 Co-Cr alloy specimens fabricated with SLM Technique while Group Β included 27 CAD/CAM zirconium specimens Subgroups corresponding to the veneering material (feldspathic and glass-ceramic) were created within each group.

The bond strength between the substrate and the veneering material and the ultimate strength were measured.

Results and Conclusion: Within the limitations of this study the following could be concluded:

  • The shear bond strength of various veneering materials on metal alloy and zirconium was mainly influenced by the type of substrate.
  • The shear bond strength values of feldspathic ceramic on the metal alloy were superior compared to all other combinations.
  • The higher shear bond strength values were noted for the combination of feldspathic porcelain on metal alloy, with statistically significant differences to glass ceramic materials on the same substrate.
  • Feldspathic porcelain also showed increased shear bond strength on zirconium substrate compared to glass ceramic materials.
  • The shear bond strength values of the two tested glass ceramic materials differed significantly either on metal or on zirconium substrate.

Keywords: Shear Bond Strength; Heat-Pressed Ceramics; Co-Cr Alloy; Zirconia Specimens

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Citation: Filippatos Gerasimos., et al. “Shear Bond Strength of Feldspathic and Heat-Pressed Ceramics to Co-Cr Alloy and Zirconia Specimens”. EC Dental Science 20.3 (2021): 01-13.

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