Shaded Zirconium Oxide Articles
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United States of America Patent
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Issued Date -
Aug 2, 2012
app pub date -
Apr 3, 2012
filing date -
Apr 6, 2006
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Abstract
A dental article includes yttria stabilized tetragonal zirconia polycrystalline ceramic, and no more than about 0.15 wt. % of one or more coloring agents of one or more of: Pr, Tb, Cr, Nd, Co, oxides thereof, and combinations thereof, whereby the dental article is provided with a color corresponding to a natural tooth shade; and wherein the dental article has a flexural strength of at least about 800 MPa. Corresponding methods are also described.
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