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Article

Impact of Sandblasting on Morphology, Structure and Conductivity of Zirconia Dental Ceramics Material

1
Department of Prosthodontics, School of Dental Medicine, University Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia
2
Department of Physics, Faculty of Science, University of Zagreb, Bijenička, c. 32, 10000 Zagreb, Croatia
3
Center for Excellence for Advanced Materials and Sensing Devices, Institute of Physics, 10000 Zagreb, Croatia
4
Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
5
Ruđer Bošković Institute, P.O. Box 180, 10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Academic Editors: Paolo Cappare and Mutlu Özcan
Materials 2021, 14(11), 2834; https://doi.org/10.3390/ma14112834
Received: 27 March 2021 / Revised: 20 May 2021 / Accepted: 22 May 2021 / Published: 25 May 2021
(This article belongs to the Special Issue Bioactive Materials in Dentistry)
Over the last decade, zirconia (ZrO2)-based ceramic materials have become more applicable to modern dental medicine due to the sustained development of diverse computer-aided design/computer-aided manufacturing (CAD/CAM) systems. However, before the cementation and clinical application, the freshly prepared zirconia material (e.g., crowns) has to be processed by sandblasting in the dental laboratory. In this work, the impact of the sandblasting on the zirconia is monitored as changes in morphology (i.e., grains and cracks), and the presence of impurities might result in a poor adhesive bonding with cement. The sandblasting is conducted by using Al2O3 powder (25, 50, 110 and 125 µm) under various amounts of air-abrasion pressure (0.1, 0.2, 0.4 and 0.6 MPa). There has been much interest in both the determination of the impact of the sandblasting on the zirconia phase transformations and conductivity. Morphology changes are observed by using Scanning Electron Microscope (SEM), the conductivity is measured by Impedance Spectroscopy (IS), and the phase transformation is observed by using Powder X-Ray Diffraction (PXRD). The results imply that even the application of the lowest amount of air-abrasion pressure and the smallest Al2O3 powder size yields a morphology change, a phase transformation and a material contamination. View Full-Text
Keywords: zirconia; sandblasting; PXRD; impedance; equivalent electrical circuit (EEC); conductivity; dental material zirconia; sandblasting; PXRD; impedance; equivalent electrical circuit (EEC); conductivity; dental material
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MDPI and ACS Style

Jakovac, M.; Klaser, T.; Radatović, B.; Bafti, A.; Skoko, Ž.; Pavić, L.; Žic, M. Impact of Sandblasting on Morphology, Structure and Conductivity of Zirconia Dental Ceramics Material. Materials 2021, 14, 2834. https://doi.org/10.3390/ma14112834

AMA Style

Jakovac M, Klaser T, Radatović B, Bafti A, Skoko Ž, Pavić L, Žic M. Impact of Sandblasting on Morphology, Structure and Conductivity of Zirconia Dental Ceramics Material. Materials. 2021; 14(11):2834. https://doi.org/10.3390/ma14112834

Chicago/Turabian Style

Jakovac, Marko, Teodoro Klaser, Borna Radatović, Arijeta Bafti, Željko Skoko, Luka Pavić, and Mark Žic. 2021. "Impact of Sandblasting on Morphology, Structure and Conductivity of Zirconia Dental Ceramics Material" Materials 14, no. 11: 2834. https://doi.org/10.3390/ma14112834

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