PRE-PROCESSED INTEGRATED AND COMPLETELY SINTERED ZIRCONIA BLOCK

摘要

The present invention relates to a pre-processed integrated and completely sintered zirconia block. A dental zirconia block comprises zirconia and a holder. The holder is made of ceramic, and the zirconia and the holder are integrated. More specifically, the zirconia is pre-processed, and particularly, one side surface of the zirconia is recessed. Also, the zirconia consists of one unit or more. In addition, the pre-processing is a method of performing injection molding, 3D printing, extrusion molding, injection molding, pressing molding, and special molding. Meanwhile, the zirconia is capable of optimizing physical properties as a dental prosthetic material by adjusting an addition amount of Nb_2O_5 or Ta_2O_5, which are added as a ternary solid solution of Nb_2O_5 or Ta_2O_5 to ZrO_2-Y_2O_3 so as to adjust the strength, toughness, hardness, and light transmittance. Further, it is possible to improve an aesthetic impression by phasing color or light transmittance.;COPYRIGHT KIPO 2019