Patent ID: 9668838
Date: 2017-06-06
CPC Classifications: A61C,A61K,C04B

Claim:
1. A method of producing an enamel colored zirconia mill blank, the method comprising: combining cobalt 2-ethyl hexanoate, iron 2-ethyl hexanoate, chromium 2-ethyl hexanoate, and nickel 2-ethyl hexanoate to create an enamel shaded pigment and dissolving the enamel shaded pigment in at least one component selected from the group consisting of hydrocarbons, mineral spirits and phyto-oils to produce a mixed enamel shaded pigment; combining the mixed enamel shaded pigment with an amount of unpigmented zirconia powder to create a concentrated enamel shaded zirconia; drying the concentrated enamel shaded zirconia to create a concentrated enamel colored zirconia powder; serially diluting the concentrated enamel colored zirconia powder into unpigmented zirconia powder to achieve a predetermined enamel color shaded powder; pressing the predetermined enamel color shaded powder to form a mill blank.