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DENTAL MILL BLANK, PROCESS FOR PRODUCTION AND USE THEREOF

  • US 20170020639A1
  • Filed: 12/03/2014
  • Published: 01/26/2017
  • Est. Priority Date: 12/04/2013
  • Status: Abandoned Application
First Claim
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1. A dental mill blank having a shape allowing the dental mill blank to be attached or fixed to a machining device, the dental mill blank comprising a porous zirconia material, the porous zirconia material comprising the oxides:

  • Zr oxide calculated as ZrO2;

    from about 80 to about 97 wt.-%,Al oxide calculated as Al2O3;

    from about 0 to about 0.15 wt.-%,Y oxide calculated as Y2O3;

    from about 1 to about 10 wt.-%,Bi oxide calculated as Bi2O3;

    from about 0.01 to about 0.20 wt.-%,Tb oxide calculated as Tb2O3;

    from about 0.01 to about 0.8 wt.-%,and optionally one or two of the following oxides;

    Er oxide calculated as Er2O3;

    from about 0.01 to about 3.0 wt.-%,Mn oxide calculated as MnO2;

    from about 0.0001 to about 0.08 wt.-%,the porous zirconia material not comprising Fe oxide calculated as Fe2O3 in an amount of more than about 0.01 wt.-%, wt.-% with respect to the weight of the porous zirconia material.

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