Patent ID: 9119696
Filing Date: 2015-09-01
Classification: A61C,B29C,B33Y,Y10T

Abstract:
1. A method of manufacturing a dental blank, comprising: forming at least an inner zone of a first color and an outer zone of a second color, wherein the inner and outer zones are concentric, and the dental blank has a geometric shape, wherein the inner zone is surrounded in its entirety by the outer zone such that only the outer zone is visible on all surfaces of the blank and the inner zone is not visible on any surface of the blank, wherein each zone has generally the same geometric shape, and wherein the blank has multiple outer surfaces, each of which has a resulting color that is of a combination of at least the first color of the inner zone and the second color of the outer zone; using a first material for the first color; using a second material for the second color; and switching between the first material and the second material at a border between the inner zone and the outer zone.