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Soft steel alloy material for dentistry

An alloy material, mild steel technology, used in dentistry, medical science, dental preparations, etc., can solve problems such as competition, and achieve good wear resistance, good corrosion resistance, and good biocompatibility.

Inactive 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 mild steel alloy materials for dental use, so the current status quo : What is seen in the Chinese market, more specifically speaking, thousands of denture manufacturing companies in our country manufacture dental crowns and crowns and bridges. Although the mild steel for dental use produced by Shanghai Dental Material Factory is excellent, it is not enough to compete with the mild steel alloy materials for dental use produced in the aforementioned countries.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Nickel (Ni) 66.4%, Chromium (Cr) 8.3%, Copper (Cu) 5.8%, Tin (Sn) 5%, Molybdenum (Mo) 4.3%, Titanium (Ti) 3.3%, Silicon (Si) 2.8%, Iron (Fe) 1.9%, manganese (Mn) 1.1%, and carbon (C) 1.1%. The safety and physical properties of the dental mild steel alloy material obtained after vacuum melting and vacuum casting in this embodiment are shown in Table 1, and the safety refers to the biological test results.

Embodiment 2

[0011] Nickel (Ni) 69%, Chromium (Cr) 9.5%, Copper (Cu) 5%, Tin (Sn) 4%, Molybdenum (Mo) 4%, Titanium (Ti) 3%, Silicon (Si) 2%, Iron (Fe) 1.5%, manganese (Mn) 1.0%, and carbon (C) 1.0%. The safety and physical properties of the dental mild steel alloy material obtained after vacuum melting and vacuum casting in this embodiment are shown in Table 1, and the safety refers to the biological test results.

Embodiment 3

[0013] Nickel (Ni) 67.7%, Chromium (Cr) 9%, Copper (Cu) 5.5%, Tin (Sn) 4.5%, Molybdenum (Mo) 3.8%, Titanium (Ti) 3%, Silicon (Si) 2.5%, Iron (Fe) 1.7%, manganese (Mn) 1.2%, and carbon (C) 1.1%. The safety and physical properties of the dental mild steel alloy material obtained after vacuum melting and vacuum casting 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 dental mild steel made from the dental mild steel alloy materials obtained in Examples 1-3 of the present invention.

[0015]

[0016] The standard clauses in the above table refer to the standard YZB / Su 0572-2009 for medical device registration products in Jiangsu Province, China; 1 in the above table # ~3 # Refers to the sampling sample of the mild steel for dental use obtained after vacuum melting and vacuum casting of the mild steel alloy material for dental use obtained in Examples 1-3. The material composition is repo...

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Abstract

A soft steel alloy material for dentistry belongs to the technical field of dentistry materials. Chemical elements and weight percentages of the soft steel alloy material include 65%-70% of nickel, 8%-10% of chromium, 5%-6% of copper, 3.5%-5.5% of tin, 3.5%-4.5% of molybdenum, 2.5%-3.5% of titanium, 2%-3% of silicon, 1.5%-2% of iron, 1.0%-1.3% of manganese and 1.0%-1.2% of carbon. The soft steel alloy material 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 soft steel alloy material has perfect safety. In addition, because the soft steel alloy material has 589.4-696.7 tensile strength ob(MPa), 4.34-4.05 elongation (%) and 342-392 Vickers hardness, the soft 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, in particular to a mild steel alloy material for dental use. Background technique [0002] Mild steel alloy materials for dentistry are used to make crowns and bridges for dental fixation and restoration, and are one of the biometallic materials. 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 teeth are not only chewing food, but also often exposed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05A61K6/04
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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