Zirconia composition, zirconia semi-sintered body and zirconia sintered body, as well as dental product
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United States of America Patent
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Jul 7, 2020
Grant Date -
Jan 4, 2018
app pub date -
Dec 25, 2015
filing date -
Dec 26, 2014
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Abstract
A zirconia composition, a zirconia semi-sintered body, a zirconia sintered body, and a dental product are provided. The zirconia sintered body contains 4 mol % to 7 mol % of yttria as stabilizer, and a shielding material. The zirconia sintered body comprises first region and second region having a higher content ratio of the shielding material than the first region. Difference between content ratio of yttria in the first region and that of yttria in the second region is 1 mol % or less.
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