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
CN1813654AInactive Publication Date: 2006-08-09ADVANCED TECHNOLOGY & MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ADVANCED TECHNOLOGY & MATERIALS CO LTD
Publication Date
2006-08-09
Estimated Expiration
Not applicable · inactive patent

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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.
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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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