Patent ID: 8691122
Filing Date: 2014-04-08
Classification: A61C,Y10T

Abstract:
1. A process for the manufacture of a dental restoration, comprising (i) providing a multi-colored shaped body comprising: at least two successive and differently colored main layers, wherein the main layers have a thickness of more than about 0.5 mm; and at least two differently colored intermediate layers between the at least two successive and differently colored main layers, wherein the intermediate layers have a thickness of up to about 0.5 mm; wherein a change in color between the intermediate layers takes place in a direction which is contrary to the direction of the change in color between the main layers; and (ii) processing the shaped body by a CAD/CAM technique to obtain the dental restoration; wherein the shaped body is formed from ceramic, glass ceramic, inorganic-organic composite, plastic or mixtures thereof.