ISSN : 2663-2187

MECHANICAL PERFORMANCE OF EXPERIMENTAL ZIRCONIA-REINFORCED POLYMER-INFILTRATED CERAMIC NETWORK MATERIAL VERSUS COMMERCIAL ENAMIC HYBRID CERAMICS

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Nesreen Y. Mohammed, Heba E. Eltayeb, Zainab Refaey El Sharkawy, Shereen M.Abdul Hameed
» doi: 10.33472/AFJBS.6.11.2024.458-469

Abstract

Background: Modern dental materials such as the porous three-dimensional structure of feldspathic ceramic infiltrated with acrylic resins, have revolutionized the field of dental ceramics for CAD-CAM technologies. This study aims to evaluate the mechanical properties of the experimental polymer-infiltrated ceramic network (PICN) and compare it to Vita Enamic, as the gold standard the commercial (PICN). Materials and Methods: In this study, two groups were investigated, the commercial PICN material (Vita Enamic) and experimental PZ10. Ten bar-shaped specimens were cut from each investigated material to assess the Vickers microhardness and flexural strength (FS) using a three-point bending test combined with elastic modulus. The resulting data were statistically analyzed. Results: Vita Enamic had a significantly higher (FS) of (158.10 MPa), elastic modulus (19.32 GPa) and hardness (206.29 VHN) in comparison to those values of exp. PZ10; 84.22 MPa, 6.55 GPa and 166.76 VHN, respectively. Conclusion: Vita Enamic had superior mechanical properties compared to the exp. PZ10. However, the exp. PZ10 could be used as a substitute for indirect restorations with an elastic modulus simulating dentin tooth structure thus reducing the chances of debonding.

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