Laboratory and clinical considerations on prosthetic zirconia infrastructures for implants
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Published on: June 24, 2018
Luis Gustavo D'Altoé Garbelotto1, Cláudia Angela Maziero Volpato, Marcelo da Rocha
1*Visiting Professor, Department of Dentistry, Federal University of Santa Catarina, Florianopolis, Brazil. †Associate Professor, Department of Dentistry, Federal University of Santa Catarina, Florianopolis, Brazil. ‡Professor, Inga Faculty, Criciúma, Brazil. §Dental Laboratory, Porto Alegre, Brazil. ‖Dental Laboratory, São Paulo, Brazil. ¶Professor, Head of Dental Materials Unit, University of Zürich, Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, Zurich, Switzerland.
Abstract:
Zirconia is a ceramic material that is used for constructing prosthetic infrastructures and implant abutments using CAD/CAM techniques. Although good initial mechanical properties are obtained with zirconia that is partially stabilized by yttrium, it may age in a moist environment, compromising such properties and, consequently, the longevity of the restorative work. To optimize the longevity of this material, it is essential that the clinician and laboratory technician understand its mechanical properties and limitations and take specific precautions needed to maintain its mechanical properties and ensure long-term performance especially in implant prosthetics. This article presents a clinical case where these precautions were taken, emphasizing the key surface treatments advocated for zirconia.
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