10TH IAOCI WORLD CONGRESS
Ceramic Implants: A New Reality in Ceramic Implantology
AUG 19-21, 2021
Paris Las Vegas, Resort & Casino, Nevada, United States
TOPIC: Ceria-Stabilized Zirconia: A New Alternative in Dental Implantology
SPEAKER: Prof. Jérôme Chevalier, FRA
Course Description
40 years ago, Garvie and his Australian co-workers reported that the stress induced transformation of metastable tetragonal zirconia grains to the monoclinic symmetry could give rise to a powerful toughening mechanism. Their results even led them to consider zirconia systems as analogues of certain steels in terms of mechanical performances, while exhibiting a much superior corrosion resistance. This seminal paper generated extraordinary excitement in the ceramic community and led to a large variety of new applications. Transformation toughening is widely used in current zirconia materials, mostly in the form of yttria-stabilized systems (Y-TZP) and results in an increase in strength and toughness when compared to non-transformable ceramics such as alumina. However, it is evident that zirconia ceramics still fail at low strains with a much larger scatter in the strength values than metals and require statistical approaches to failure.
Here we describe in details the mechanical behaviour laws of newly developed ceriadoped zirconia composites exhibiting a high degree of stress-induced transformation.
They display,
i) significant amount of transformation-induced plasticity without damage
ii) very high flaw tolerance
iii) almost no dispersion in strength data. They potentially open new application avenues in situations where the advantages of ceramics were dampened by their brittle failure behaviour. In particular, the consequences of such behaviour for dental implants and additive-manufactured structures are highlighted. The biocompatibility and bone integration of this material is also discussed.
Why should you participate in the 10th World Congress?
20 World Renowned Speakers
Discussions based on the Past, Present & Future of Ceramic Implantology
Case Studies Based on 15+Year Follow-ups
Lectures & Courses on the Design, Concept, Science & Biomechanical Aspects of Ceramic Implants
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