Russian Journal of DentistryRussian Journal of Dentistry1728-28022413-2934Eco-Vector3912910.17816/dent.39129Research ArticleTHE INFLUENCE OF SURFACE ABRASIVE TREATMENT AND TEMPERATURE EFFECTS ON THE PROPERTIES OF DENTAL CERAMICS BASED ON METASTABLE TETRAGONAL ZIRCONIUMTsalikovaNina Amurkhanovna-15062013173182121072020Copyright © 2013, Eco-Vector2013Yttrium stabilized tetragonal zirconia (YTZP) has opened up new prospects for all-ceramic restorations. However, one of the most common problems in the manufacture of zirconia prostheses is the violation of the integrity of frames and chipped ceramic tiles. In the process of manufacturing zirconium frames of fixed prosthesis there are elements of abrasion and heat treatment. However, it is likely that these effects may affect the mechanical properties of frames. Therefore aim of this study was to determine the nature and impact of the blast and mechanical processing of samples from stabilized zirconia, using diamond tools, as well as high-temperature re-firing on the properties of their strength and the phase state and determine the feasibility of regenerating firing to restore the original properties and the phase state of the material.tetragonal zirconiaframeabrasion and heat treatmentmechanical propertiesphase stateтетрагональный диоксид циркониякаркасабразивная и температурная обработкапрочностные свойствафазовый состав[Komine F., Blatz M.B., Matsumura H. Current status of zirconia-based fixed restorations. J. Oral Sci. 2010; 52 (4): 531-9.][Sailer I., FeherA., Filser F et al. Five-year clinical results of zirconia frameworks for posterior fixed partial dentures. Int. J. Prosthodont. 2007; 20: 383-8.][Guazzato M., Albakry M., Quach L., Swain M.V. Influence of surface and heat treatments on the flexural strength of a glass-infiltrated alumina/zirconia-reinforced dental ceramic. Dent. Mater. - 2005; 21: 454-63.][Kosmac T., Oblak C., Jevnikar P., Funduk N., Marion L. Strength and reliability of surface treated Y-TZP dental ceramics. J. Biomed. Mater. Res. 2000; 53 (4): 304-13.][Sundh A., Molin M., Sjogren G. Fracture resistance of yttrium oxide partially-stabilized zirconia all-ceramic bridges after venee ring and mechanical fatigue testing. Dent. Mater. 2005; 21: 476-82.]