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Support steel alloy material for dentistry

A steel alloy and dental technology, applied in the fields of dentistry, medical science, dental preparations, etc., can solve problems such as competition, and achieve the effects of good wear resistance, good biocompatibility, and good corrosion resistance

Active Publication Date: 2010-04-14
南通今日高科技新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, perhaps due to technical secrecy and market possession (monopolistic) considerations, in the existing domestic and foreign literature, there are no reports on steel alloy materials for dental brackets, so the current status quo : More specifically, tens of thousands of denture manufacturing companies in our country manufacture dental clasps and bracket steels used in bases, which are seen in the Chinese market. Germany, Japan, the United States and Switzerland occupy an absolute dominant position. Although the dental bracket steel produced by China Shanghai Dental Material Factory is excellent, it is not enough to compete with the dental bracket steel alloy materials produced in the aforementioned countries in the market

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0009] Cobalt (Co) 63%, Chromium (Cr) 29%, Molybdenum (Mo) 4.5%, Titanium (Ti) 1.1%, Silicon (Si) 0.9%, Iron (Fe) 0.8%, Manganese (Mn) 0.4% and Carbon (C) 0.3%. The safety and physical properties of the dental bracket steel obtained after vacuum melting and vacuum casting of the dental bracket steel alloy material in this embodiment are shown in Table 1, and the safety refers to the biological test results.

Embodiment 2

[0011] Cobalt (Co) 64%, Chromium (Cr) 30%, Molybdenum (Mo) 4.2%, Titanium (Ti) 0.6%, Silicon (Si) 0.5%, Iron (Fe) 0.3%, Manganese (Mn) 0.3% and Carbon (C) 0.1%. The safety and physical properties of the dental bracket steel obtained after vacuum melting and vacuum casting of the dental bracket steel alloy material in this embodiment are shown in Table 1, and the safety refers to the biological test results.

Embodiment 3

[0013] Cobalt (Co) 63.5%, Chromium (Cr) 29.5%, Molybdenum (Mo) 4.8%, Titanium (Ti) 1.0%, Silicon (Si) 0.4%, Iron (Fe) 0.4%, Manganese (Mn) 0.3% and Carbon (C) 0.1%. The safety and physical properties of the dental bracket steel obtained after vacuum melting and vacuum casting of the dental bracket steel alloy material in this embodiment are shown in Table 1, and the safety refers to the biological test results.

[0014] Table 1 shows the test results of the dental bracket steel made from the dental bracket steel alloy material obtained in Examples 1-3 of the present invention.

[0015]

[0016] The above table refers to the standard clause in Table 1, which is the product standard YZB / Su 0571-2009 for medical device registration in Jiangsu Province, China; 1 in the above table # ~3 # Refers to the sampling sample of the dental bracket steel obtained after vacuum melting and vacuum casting of the dental bracket steel alloy material obtained in Examples 1-3. The material c...

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Abstract

A support steel alloy material for dentistry belongs to the technical field of dentistry materials. Chemical elements and weight percentages of the support steel alloy material include that cobalt takes 62%-64%, chromium takes 28%-30%, molybdenum takes 4%-5%, titanium takes 0.3%-1.2%, silicon takes 0.2%-1.3%, iron takes 0.2%-1.0%, manganese takes 0.2%-1.3% and carbon takes 0.1%-1.2%. The support steel alloy material for dentistry provided by the technical scheme of the invention is fine in biocompatibility with human bodies, has fine corrosion resistance, has hemolysis rate lower than 5%, does not have acute systemic toxicity, has cytotoxicity which is not higher than I level, and does not have oral mucous membrane irritation or delayed contact sensitization, and then the support steel alloy material has perfect safety. In addition, because the support steel alloy material is 767.1-789 in tensile strength ob(MPa), 5.36-5.44 in elongation (%) and 392.8-411 in Vickers hardness, the support steel alloy material has appropriate strength, hardness and wear resistance and fine processing property, and can be adaptable to soft and hard tissue inside orals.

Description

technical field [0001] The invention belongs to the technical field of dental materials, and in particular relates to a dental bracket steel alloy material. Background technique [0002] Dental bracket steel alloy material is mainly used for repairing the snap ring and base of the tooth, and it is a kind of biometal material. Clasps and bases are widely used in restorative dentistry. As is well known in the industry, the safety requirements of dental materials are extremely stringent, because dental material products are placed in the oral cavity for a long time and are in direct contact with human tissue, so in addition to requiring good affinity with human tissue, other The hemolysis rate, acute systemic toxicity, cytotoxicity, oral mucosal irritation, skin and mucous membrane sensitization must meet the requirements of the human body. At the same time, the requirements for the effectiveness of dental materials are also extremely strict, because when people eat, the teet...

Claims

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Application Information

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IPC IPC(8): C22C19/07A61C13/01A61K6/04
Inventor 姚向东张杏耀姚超
Owner 南通今日高科技新材料股份有限公司
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