title: An experimental bioactive dental ceramic for metal-ceramic restorations: Textural characteristics and investigation of the mechanical properties.
abstract: 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.
authors.affiliation: Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
authors.forename: Ourania-Menti
authors.initials: OM
authors.lastname: Goudouri
authors.affiliation: School of Health Sciences, Dentistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
authors.forename: Eleana
authors.initials: E
authors.lastname: Kontonasaki
authors.affiliation: Department of Geology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
authors.forename: Lambrini
authors.initials: L
authors.lastname: Papadopoulou
authors.affiliation: School of Health Sciences, Dentistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
authors.forename: Marianthi
authors.initials: M
authors.lastname: Manda
authors.affiliation: 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.
authors.forename: Panagiotis
authors.initials: P
authors.lastname: Kavouras
authors.affiliation: Chemistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
authors.forename: Konstantinos S
authors.initials: KS
authors.lastname: Triantafyllidis
authors.affiliation: Department of Civil Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
authors.forename: Maria
authors.initials: M
authors.lastname: Stefanidou
authors.affiliation: School of Health Sciences, Dentistry Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
authors.forename: Petros
authors.initials: P
authors.lastname: Koidis
authors.affiliation: Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece. Electronic address: kpar@auth.gr.
authors.forename: Konstantinos M
authors.initials: KM
authors.lastname: Paraskevopoulos
mesh_terms: D002516:Ceramics; D003776:Dental Porcelain; D003793:Dental Restoration, Permanent; D003799:Dental Stress Analysis; D008422:Materials Testing; D016876:Metal Ceramic Alloys; D018583:Pliability; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: D016876:Metal Ceramic Alloys; D003776:Dental Porcelain
keywords: Biomaterials; Mechanical testing; Sol-gel synthesis; Textural properties