An experimental bioactive dental ceramic for metal-ceramic restorations: Textural characteristics and investigation of the mechanical properties.

Autor: Goudouri OM; Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Kontonasaki E; School of Health Sciences, Dentistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Papadopoulou L; Department of Geology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Manda M; School of Health Sciences, Dentistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Kavouras P; Research center of Advanced Unit Composites, Nano Materials and Nanotechnology, Department of Materials Science and Engineering, School of Chemical Engineering, National Technical University, Athens GR-157 80, Greece., Triantafyllidis KS; Chemistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Stefanidou M; Department of Civil Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Koidis P; School of Health Sciences, Dentistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Paraskevopoulos KM; Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece. Electronic address: kpar@auth.gr.
Jazyk: angličtina
Zdroj: Journal of the mechanical behavior of biomedical materials [J Mech Behav Biomed Mater] 2017 Feb; Vol. 66, pp. 95-103. Date of Electronic Publication: 2016 Oct 28.
DOI: 10.1016/j.jmbbm.2016.10.019
Abstrakt: The aim of this study was the evaluation of the textural characteristics of an experimental sol-gel derived feldspathic dental ceramic, which has already been proven bioactive and the investigation of its flexural strength through Weibull Statistical Analysis. The null hypothesis was that the flexural strength of the experimental and the commercial dental ceramic would be of the same order, resulting in a dental ceramic with apatite forming ability and adequate mechanical integrity. Although the flexural strength of the experimental ceramics was not statistically significant different compared to the commercial one, the amount of blind pores due to processing was greater. The textural characteristics of the experimental ceramic were in accordance with the standard low porosity levels reported for dental ceramics used for fixed prosthetic restorations. Feldspathic dental ceramics with typical textural characteristics and advanced mechanical properties as well as enhanced apatite forming ability can be synthesized through the sol-gel method.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: