Zirconium oxide full-porcelain dental repair material and its preparing method

A restorative material, zirconia technology, applied in dental preparations, dentistry, dental prosthesis, etc., can solve the problems of difficult control of dimensional accuracy and low mechanical comprehensive performance, and achieve excellent mechanical comprehensive performance, improved operation difficulty and stable quality Effect

Inactive Publication Date: 2006-08-09
ADVANCED TECHNOLOGY & MATERIALS CO LTD
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Problems solved by technology

However, the yttria-stabilized tetragonal zirconia materials currently prepared in China still have the disadvantages of difficult control of dimensional accuracy and low comprehensive mechanical properties, such as (1) Chinese patent with publication number CN1489988 and publication date: 2004.04.21: low cost A machinable zirconia ceramic dental restoration and a preparat

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  • Zirconium oxide full-porcelain dental repair material and its preparing method
  • Zirconium oxide full-porcelain dental repair material and its preparing method
  • Zirconium oxide full-porcelain dental repair material and its preparing method

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Embodiment Construction

[0037] According to the chemical composition of the raw materials used in the preparation of the zirconia all-ceramic dental restorative material of the present invention, seven batches of zirconia all-ceramic dental restorative materials were prepared by using the preparation method of the present invention. Among them, Table 1 is the chemical composition list of the raw materials used for the preparation of the zirconia all-ceramic dental restorative material of the present invention, Table 2 is the process steps and process parameter table of the preparation method of the zirconia all-ceramic dental restorative material of the present invention, and Table 3 is the table of the present invention Performance comparison table of the embodiment of the zirconia all-ceramic dental restorative material and the comparative example of the prior art. Among them, serial numbers 1-7# are examples of the present invention, and 8-9# are comparative examples of the prior art, which are res...

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Abstract

The present invention belongs to a ceramic material and its preparation field. In the particular, it relates to a zirconia full-porcelain dental repairing material and its preparation method. Its raw material composition contains (by wt%) 86-92% of tetragonal-phase zirconia stabilized by 3.0-5.15% of yttrium oxide, 5-10% of flux and 3-4% of adhesive, in which the flux is one kind of boron-aluminum-silicon system glass, hydroxyapatite and beta-stellite or more than one kind of them, and the adhesive is one or more than one kind of polyvinyl alcohol, carboxyl methyl cellulose and polyacrylic acid. Its preparation method includes the following steps: mixing raw materials, garanulating, cold isostatic compaction, moulding and sintering.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials and their preparation, and in particular relates to a zirconia all-ceramic dental restorative material and a preparation method thereof. Background technique [0002] The ceramic materials commonly used for restoration in clinical dentistry mainly include metal-ceramic teeth and all-ceramic teeth. [0003] Because metal porcelain teeth have the advantages of high metal strength, durability, good edge adhesion, beautiful porcelain color, good corrosion resistance, and strong self-cleaning effect, they are very popular among dentists and patients, and are widely used in developed countries. very common. However, there are still many problems to be solved for gold-ceramic restorations, such as: the enamel component is cut too much, requiring a metal casting system; In addition, non-precious metals also have corrosion problems and are harmful to the human body. Currently, Ni-Cr alloys and ...

Claims

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Application Information

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IPC IPC(8): A61K6/04A61K6/097A61K6/083A61K6/898
Inventor 梁新杰周少雄仇越秀李晓天邓旭亮李德慧张娓宋文娟
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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