Production method of dental ceramics material

Details Production method of dental ceramics material Production method of dental ceramics material

2007-01-29

2009-02-24

Koslow, C. Melissa (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Dental

C501S103000, C501S105000

Reexamination Certificate

active

07494539

ABSTRACT:
To make a color tone similar to that of dentin of a tooth at a low cost without discoloration when baking, a dental ceramics material is produced by: mixing a pink coloring agent and a yellow coloring agent with zirconium oxide containing a stabilizer while having a mixing ratio of 0.001 to 5 wt. % respectively; and baking it, where the pink coloring agent is obtained by dissolving manganese oxide in aluminum oxide as a solid solution, the yellow coloring agent is obtained by dissolving vanadium oxide in zirconium oxide as a solid solution, the zirconium oxide contains 0.1 to 30 wt. % aluminum oxide if necessary, the stabilizer is one or more kinds selected from a group including yttrium oxide, magnesium oxide, calcium oxide, and cerium oxide, and the content thereof is preferably 3 to 7 wt. %.

REFERENCES:
patent: 42 07 179 (1992-09-01), None
patent: 2571646 (1996-10-01), None
patent: 2004-527280 (2004-09-01), None
patent: WO 01/12097 (2001-02-01), None
patent: WO 2005/070322 (2005-08-01), None

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