Patent ID: 9505662
Filing Date: 2016-11-29
CPC Classification: A61K,C04B

Claim Text:
1. A method of making a colored zirconia ceramic body comprising; a) obtaining a coloring solution consisting essentially of 0.01% to 5% by weight of at least one metallic salt by weight of the coloring solution, a solvent, and optionally, an acid, wherein the at least one metallic salt is soluble in the solvent; b) choosing an amount of the coloring solution and an amount of a zirconia ceramic slurry in a ratio of about 0.01 gram to about 1.00 gram coloring solution per gram of zirconia ceramic slurry to provide a selected hue, chroma, and value to a colored zirconia ceramic body; c) adding the amount of the coloring solution to the amount of a zirconia ceramic slurry; d) mixing to distribute the coloring solution throughout the zirconia ceramic slurry to form a colored zirconia slurry; and e) slip-casting the colored zirconia slurry to form a colored zirconia ceramic body made predominantly of zirconia.