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A dental restoration material

A restorative material and dental technology, applied in dentistry, dental prosthesis, dental preparations, etc., can solve problems such as gum discoloration, patients' metal ion allergies, poor biocompatibility, etc., and achieve the effect of reducing costs

Active Publication Date: 2021-07-02
THE PEOPLES HOSPITAL OF GUANGXI ZHUANG AUTONOMOUS REGION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Non-precious metals are mainly cobalt-chromium and nickel-chromium alloys. The alloys are cheap, but they have many disadvantages such as poor biocompatibility, and patients are allergic to metal ions.
[0003] At present, in the current situation of domestic dental restorative materials, non-precious metal materials are used the most. The biocompatibility of nickel-chromium and cobalt-chromium alloys is poor, and allergic reactions to metal ions, especially the problem of gum discoloration when used as Class III alloys cannot be solved.

Method used

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] The preparation technology of dental alloy material of the present invention:

[0021] Melting in WS-4 non-consumable vacuum melting furnace, current 100-290A, voltage 220V, vacuum degree 5×10-3Pa, smelting into blocks, turning over 4 times, taking out after natural cooling for use. After the alloy was melted and cast into an ingot, the standard dental casting procedure was used to cast a sample of 10mm×10mm×1mm. The hardness of the as-cast alloy is 211. ...

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Abstract

The application provides a dental restorative material, the raw materials of which include Ag, Pd, Cu and Au. The dental restorative material provided by the invention has good biocompatibility, corrosion resistance and moderate price, and is an ideal substitute material for noble alloys.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a dental restoration material. Background technique [0002] Since the investment casting technology was introduced into the dental restoration process at the beginning of the 20th century, metal materials have officially entered the field of dental restoration, and are still the most widely used materials for oral restoration. Statistics show that the output value of dental metal materials accounts for about 66.3% of the total output value of dental consumables. At present, the price of dental nickel-based porcelain alloy is about 2 to 4 yuan / g, and the price of precious metal alloy is about 150 to 650 yuan / g. additional value. Dental alloy materials are mainly divided into three types according to their composition: noble, semi-precious and non-precious metal alloy materials. The noble metal alloy is mainly gold-palladium alloy, which is the earliest dental alloy material,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/844A61K6/15C22C30/02C22C5/06C22C1/02
CPCA61K6/84A61K6/844C22C1/02C22C5/06C22C30/02
Inventor 潘小波田保杨征彭利辉郝亮
Owner THE PEOPLES HOSPITAL OF GUANGXI ZHUANG AUTONOMOUS REGION