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MULTI SECTIONAL DENTAL ZIRCONIA MILLING BLOCK, PROCESS OF PRODUCTION AND USE THEREOF

  • US 20150282905A1
  • Filed: 10/02/2013
  • Published: 10/08/2015
  • Est. Priority Date: 10/17/2012
  • Status: Active Grant
First Claim
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1. A porous dental milling block comprising at least two geometrically defined Material Sections A and B,Material Section A comprising a tetragonal zirconia crystal phase in an amount A-T in wt.-% and a cubic zirconia crystal phase in an amount A-C in wt.-%,Material Section B comprising a cubic zirconia crystal phase in an amount B-T in wt.-% and a cubic zirconia crystal phase in an amount B-C in wt.-%,wherein
(amount of tetragonal phase A-T in wt.-%)/(amount of cubic phase content A-C in wt.-%)>

  • 1and
    (amount of tetragonal phase content B-T in wt.-%)/(amount of cubic phase content B-C in wt.-%)<

    1the material of Material Sections A and B showing a N2 adsorption and/or desorption behaviour of isotherm IV according to IUPAC classification,

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