Zirconia composition, zirconia pre-sintered body and zirconia sintered body, and dental product
AssigneeKuraray Noritake Dental Inc.
InventorsYoshihisa Ito, Atsushi Matsumoto, Tomohiro Emoto
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Abstract
A zirconia sintered body that suppresses discoloration due to porcelain. The zirconia sintered body contains at least one of a coloring agent A, which is erbium oxide and a coloring agent B, which is nickel oxide, and contains a composite oxide of zirconium and vanadium. A composition, containing zirconium oxide, yttrium oxide, and a coloring agent, where the coloring agent contains at least one of a coloring agent A, which is erbium oxide and a coloring agent B, which is nickel oxide, and contains a coloring agent C, which is a composite oxide of zirconium and vanadium.
Claims15
A zirconia sintered body, comprising:
- a coloring agent B:
- nickel oxide;
- and
- a coloring agent C:
- a composite oxide of zirconium and vanadium.
A composition, comprising:
- zirconium oxide;
- yttrium oxide;
- and
- a coloring agent,
- wherein the coloring agent comprises
- a coloring agent B:
- nickel oxide, and
- a coloring agent C:
- a composite oxide of zirconium and vanadium.
A pre-sintered body, comprising:
- zirconium oxide;
- yttrium oxide;
- and
- a coloring agent,
- wherein the coloring agent comprises
- a coloring agent B:
- nickel oxide, and
- a coloring agent C:
- a composite oxide of zirconium and vanadium.
Dependencies are inferred from the claim text.