SET OF COLORED POROUS ZIRCONIA DENTAL MILL BLANKS AND PROCESS OF PRODUCTION

The invention relates to a set of porous zirconia dental mill blanks comprising at least two differently colored porous zirconia dental mill blanks, the porous zirconia dental mill blanks comprising zirconia, yttria, coloring ions, and optionally alumina, comprising multiple layers with different yt...

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Bibliographic Details
Main Authors Jahns, Michael, Schechner, Gallus, Schnagl, Hans R
Format Patent
LanguageEnglish
Published 26.10.2023
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Summary:The invention relates to a set of porous zirconia dental mill blanks comprising at least two differently colored porous zirconia dental mill blanks, the porous zirconia dental mill blanks comprising zirconia, yttria, coloring ions, and optionally alumina, comprising multiple layers with different yttria content, having a bottom layer and a top layer, the content of yttria and coloring ions in mol % changing in opposite direction to each other from the bottom layer to the top layer, and the content of yttria and coloring ions in mol % being adjusted to provide an essentially constant ratio of the sum of yttria and coloring ions in mol % between the top layer and the bottom layer for the at least two differently colored zirconia dental mill blanks. The invention also relates to a process of producing such a set.
Bibliography:Application Number: US202118029975