Methods for enhancing optical and strength properties in ceramic bodies having applications in dental restorations
AssigneeJames R. Glidewell Dental Ceramics, Inc.
InventorsJae Won Kim, Akash
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Abstract
A method for enhancing optical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. The porous or pre-sintered stage of a ceramic body is treated with two different yttrium-containing compositions and sintered, resulting in sintered ceramic bodies having enhanced optical properties. The enhanced optical properties may be substantially permanent, remaining for the useful life of the sintered ceramic body.
Claims10
A kit comprising at least two aqueous yttrium-containing compositions to apply to a porous ceramic body for enhancing optical properties in a sintered dental restoration comprising,
- a) a first aqueous yttrium-containing composition comprising
- between 5 wt % and 35 wt % yttrium chloride based on the total weight of the first composition, and
- a first colorant comprising 0.05 wt % to 2 wt % of a metal-containing component as a coloring agent;
- and
- b) a second aqueous yttrium-containing composition comprising
- between 40 wt % and 70 wt % yttrium chloride based on the total weight of the second composition.
A kit comprising at least two aqueous yttrium-containing compositions to apply to a porous ceramic body for enhancing optical properties in a sintered dental restoration comprising,
- a) a first aqueous yttrium-containing composition comprising
- between 5 wt % and 35 wt % yttrium chloride based on the total weight of the first composition, and
- a first colorant comprising a metal-containing component as a coloring agent;
- and
- b) a second aqueous yttrium-containing composition comprising
- between 40 wt % and 70 wt % yttrium chloride based on the total weight of the second composition, and
- a second colorant comprising from 0.01 wt % to 0.2 wt % of a cobalt-containing component based on the total weight of the second aqueous yttrium-containing composition.
Dependencies are inferred from the claim text.