| abstract |
More particularly, the present invention relates to a method for producing a zirconia multilayer block for artificial teeth. More specifically, a first raw material mixing stage in which 3 mol% of yttrium oxide-tetragonal zirconia polycrystal and an organic binder are mixed, and 3 mol% of yttrium oxide-tetragonal zirconia polycrystal. A second raw material mixing stage for mixing 5 mol% of yttrium oxide-tetragonal zirconia polycrystal and an organic binder; a third raw material mixing stage for mixing 5 mol% of yttrium oxide-tetragonal zirconia polycrystal and an organic binder; The mixture produced through the first raw material mixing stage, the second raw material mixing stage, and the third raw material mixing stage is sequentially charged into a compression mold and compressed and molded through the compression molding stage and the compression molding stage. The formed body is calcined in the calcination step. This method provides a zirconia multilayer block for artificial teeth that develops a color similar to natural teeth after being impregnated with a coloring solution by adjusting the yttrium oxide content during the manufacturing process. |