Opacity imparting liquid for zirconia

A technology of transparency and zirconia, which can be used in compression molding cups, dental repairs, dental prostheses, etc., and can solve problems such as inability to adjust shades

Active Publication Date: 2022-05-10
SHOFU INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this method, the transparency can be improved by coloring the surface of zirconia, but since it becomes a coloring material at the same time, it is not possible to adjust the shade in order to adjust the opacity.

Method used

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  • Opacity imparting liquid for zirconia
  • Opacity imparting liquid for zirconia
  • Opacity imparting liquid for zirconia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0043] As the zirconia opacity-imparting liquid, an opacity-imparting liquid containing the components shown in the following Examples and Comparative Examples was prepared. Blending involves mixing the various reagents in a solvent for 1 hour. As the opaque zirconia disk, "Shofu disk ZR Lucent FA Superlight color (松风ディスク ZR Lucent FA superlight color)" manufactured by Nippon Matsukaze Co., Ltd. was used. Semi-sintered zirconia disk cut into 10mm x 10mm x 1mm Zirconium sheet. Thereafter, the opacity-imparting liquids described in Examples and Comparative Examples were applied with a brush. Sintering is carried out according to the method described in the instruction manual. In addition, regarding the opacity, the visible light transmittance of the non-coated opaque material was calculated as 100. Regarding the applicability, the applicability of the opacity-imparting liquid was also evaluated as A, B, and C. The applicability is as follows: A can be applied with a brush; B...

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Abstract

The present invention provides an opacity-imparting liquid, which is a liquid material that can be applied to a part of a highly transparent zirconia crown without coloring and can only adjust transparency. The opacity-imparting liquid of the present invention is used for a prosthetic device cut from zirconia for dental cutting, wherein it contains: (a) 10 to 39 wt% of a water-soluble aluminum compound and / or a water-soluble lanthanum compound; (b ) water 60-89wt%; and (c) organic solvent 1-20wt%.

Description

technical field [0001] The present invention relates to an opacity-imparting liquid for expressing opacity in a zirconia ceramic prosthesis after sintering by applying it to a prosthesis machined from zirconia for dental machining using a CAD / CAM system in the dental field Sex (opaque). Background technique [0002] In the past, in the dental treatment of missing crowns, prosthetic restorations were usually performed by casting crowns or dentures. Specifically, there are functional and aesthetic ceramic fired crowns and bridges that reproduce the form of dental crowns by firing ceramic materials on the surface of metal frames made of casting alloys for ceramic materials. clinical application. [0003] In addition, from the viewpoint of the onset of metal allergy and price hikes influenced by the market price of precious metals, etc., and from the viewpoint of aesthetics that can imitate the color tone of natural teeth, by using alumina, aluminosilicate glass, disilicate gl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C8/00A61K6/818A61K6/80A61K6/20
CPCA61C8/00A61K6/20A61K6/70A61K6/818C04B41/85C04B41/009C04B41/5007C04B2111/00836C04B2111/80A61K6/16A61K6/78C04B35/48C04B41/4535C04B2103/0021
Inventor 北村敏夫高桥周平
Owner SHOFU INC
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