process for producing an artificial dental zirconia block having a hue gradient

摘要

the present invention includes the steps of providing a colored zirconia powder and white zirconia powder, the desired hue in order to give a gradient, more it is blended with the colored zirconia powder and the white zirconia powder the colored zirconia powder mixing ratios were mixed differently between said white zirconia powder and a different weight ratios and the stage of preparing a number of raw materials, said the order of the raw material content is often colored zirconia powder, or sequentially compression molding mold or molding the plurality of raw materials in the order of the raw material content of the colored zirconia powder is less a step of molding is injected into the frame, a method of manufacturing an artificial tooth for zirconia block having a color gradient which is characterized in that it comprises a step of calcining the molded resultant structure. According to the present invention, it is possible hue gradient natural tooth has to be implemented by zirconia block itself, without using the liquid set of coating material and liquid, to express the aesthetics of natural teeth.BACKGROUND 1