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.
Claims19
A kit comprising at least two yttrium-containing solutions to apply to a porous ceramic body for enhancing optical properties in a sintered dental restoration comprising,
- a) a first yttrium-containing solution comprising
- between 5 wt % and 35 wt % of an yttrium salt based on the total weight of the first yttrium-containing solution, and
- a first colorant comprising 0.05 wt % to 2 wt % of a metal-containing component as a coloring agent;
- and
- b) a second yttrium-containing solution comprising
- between 10 wt % and 70 wt % of an yttrium salt based on the total weight of the second yttrium-containing solution.
A kit comprising at least two yttrium-containing solutions to apply to a porous ceramic body for enhancing optical properties in a sintered dental restoration comprising,
- a) a first yttrium-containing solution comprising
- between 5 wt % and 35 wt % of an yttrium salt based on the total weight of the first yttrium-containing solution, and
- a first colorant comprising a metal-containing component as a coloring agent;
- and
- b) a second yttrium-containing solution comprising
- between 10 wt % and 70 wt % of an yttrium salt based on the total weight of the second yttrium-containing solution, and
- a second colorant comprising from 0.01 wt % to 0.2 wt % of a cobal-containing component based on the total weight of the second yttrium-containing solution.
Dependencies are inferred from the claim text.