Ceramic dental veneer and preparation method thereof

A ceramic veneer and veneer technology, which is applied in dental preparations, tooth protection coatings, dentistry, etc., can solve the problems of lack of aesthetics and firmness of resin materials, resin easy to change color strength, gum discoloration, etc., to shorten the clinical The effect of bonding time, roughness improvement, and impact resistance improvement

Active Publication Date: 2020-09-22
深圳市一诺牙科技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Resin materials are widely used in the initial stage of the development of dental veneer technology. The reason is that the resin curing process is simple and practical, and the cost is low. After long-term use, the resin is easily discolored and its strength decreases. Users need to replace it regularly, which is very inconvenient
Dental veneers made of metal materials are durable, but their appearance is different from normal teeth, and during long-term use, the dissociated metal ions not only irritate the gums and cause gum discoloration, but also affect health after metal ions enter the body

Method used

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  • Ceramic dental veneer and preparation method thereof
  • Ceramic dental veneer and preparation method thereof

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the examples.

[0043] The ceramic tooth veneer composition and mass percentage provided in the embodiment of the present invention are as follows:

[0044]

[0045] The above-mentioned raw materials are commercially available products with raw material purity greater than 99.9%, and the average particle size of the fired raw materials is 0.1 μm. The formulation of the present invention is different from the use of alumina as a raw material in the prior art. In the present invention, zirconia is used as the main body of the ceramic raw material. The hardness of zirconia ceramics is better than that of alumina ceramics, and the biocompatibility is better. The addition of hafnium oxide can help the main structure of ceramics to be more stable, aluminum oxide and titanium oxide can help adjust the color of the ceramic patch after firing, making the color of the patch more white and bright, and l...

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Abstract

The invention discloses ceramic veneer for a tooth. The ceramic veneer is prepared from components in percentage by mass as follows: 70%-85% of ZrO2, 4%-12% of HfO2, 3%-8% of Al2O3, 3%-6% of TiO2, 1%-4% of Y2O3, 0.05%-0.2% of La2O3 and 1%-3% of Nb through mixing and firing, wherein the average particle size of the raw materials ranges from 0.05 mu m to 0.3 mu m. The ceramic veneer for the tooth is made from safe and non-toxic raw materials, can be soaked in saliva for a long time without separating out harmful substances and cannot deform or become crisp even if used for a long period of time.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a tooth veneer made of ceramic material and a preparation method of the veneer. Background technique [0002] Tooth veneer is a convenient, quick, painless and non-destructive tooth whitening technology for tooth whitening and restoration. It is a white veneer placed on the surface of stained teeth to cover the color on the teeth. Dental veneers are safe, aesthetically pleasing and beneficial to dental health. Dental veneer technology grinds out less tooth tissue, and even does not need to grind away tooth tissue. It basically controls the sequelae of full crown restoration such as postoperative pulp inflammation and necrosis, and can maintain the long-term health of natural teeth. On the other hand, dental veneer technology has a good shockproof effect. Choosing the right dental veneer material can have the same optical properties as natural teeth, achieving a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/818A61K6/811A61K6/822A61K6/802A61K6/20A61K6/15A61C19/06
CPCA61C19/06A61K6/00A61K6/811A61K6/816A61K6/822A61K6/824
Inventor 郭晓辉
Owner 深圳市一诺牙科技术有限公司
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