| 摘要 |
The present invention relates to a method for preparing a zirconia multi-layered block for artificial teeth and, more specifically, comprises: a first material mixing step of mixing 3 mol% yttrium oxide-tetragonal zirconia polycrystal and an organic binder; a second material mixing step of mixing 3 mol% yttrium oxide-tetragonal zirconia polycrystal, 5 mol% yttrium oxide-tetragonal zirconia polycrystal and an organic binder; a third material mixing step of mixing 5 mol% yttrium oxide-tetragonal zirconia polycrystal and an organic binder; a compression molding step of sequentially injecting the mixtures, which are prepared through the first material mixing step, the second material mixing step and the third material mixing step, into a mold for compression molding and compression molding the same; and a calcination step of calcining the molded product compression molded through the compression molding step. The method, which comprises the steps, for preparing a zirconia multi-layered block for artificial teeth controls the content of yttrium oxide during the preparation process, thereby providing a zirconia multi-layered block for artificial teeth which exhibit a color similar to that of natural teeth after being immersed in a staining solution. |
