CN103083101A - Antibacterial cobalt-chromium alloy porcelain false tooth - Google Patents
Antibacterial cobalt-chromium alloy porcelain false tooth Download PDFInfo
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- CN103083101A CN103083101A CN201210595082XA CN201210595082A CN103083101A CN 103083101 A CN103083101 A CN 103083101A CN 201210595082X A CN201210595082X A CN 201210595082XA CN 201210595082 A CN201210595082 A CN 201210595082A CN 103083101 A CN103083101 A CN 103083101A
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Abstract
The invention discloses an antibacterial cobalt-chromium alloy porcelain false tooth. The false tooth comprises a cobalt-chromium alloy serving as a base material, and a porcelain layer on the surface of the cobalt-chromium alloy; the cobalt-chromium alloy is composed of the following components in parts by weight: 27.5 to 28.5 parts of Cr, 9.5 to 11.5 parts of Mo, 3 to 5 parts of W, 2.5 to 3.5 parts of Mn, 1.5 to 2.5 parts of Nb, 1 to 2 parts of Si, 0.8 to 1.2 parts of Ag, 1.5 to 2.5 parts of Cu, 0.5 to 0.7 parts of Ce, and the balance of Co; the cobalt-chromium alloy has the tensile strength of more than about 960MPa, the yield strength of more than about 730MPa, and the vickers hardness of more than about 550HV. The cobalt-chromium based alloy of the false tooth is casted and formed by the evanescent mode process; and the prepared false tooth is excellent in performance and good in antibacterial effect.
Description
Technical field
The present invention relates to new material technology field, particularly a kind of antibiotic cochrome porcelain artificial tooth.
Background technology
Vitallium has been applied in medical field very early, and it is applied in to transplant in medical treatment the earliest does the artificial limb joint, due to its biocompatibility preferably, uses till today.
The biological alloy of cobalt chrome molybdenum is mainly developed for the toxicity of nickel and beryllium, and its cobalt content contains the cobalt amount than nickel-base alloy and wants high, and to contain the cobalt amount higher because of it, and its corrosion resistance is better, and adhesive strength surpasses 25MPa, and is more safe and reliable.
In recent years, vitallium is due to its successful Application in the artificial limb joint, is used as gradually the artificial tooth material and is applied to the Oral Repair field, and such artificial tooth comfortable wearing Du Genggao the phenomenons such as alloy variable color can not occur in the patient oral cavity.
Artificial tooth is used for the reparation of tooth defect, disappearance or denture and substitutes, and oral cavity health and just abnormal.Living standard raising and stomatologic development along with people obviously increase the demand of high-tech oral cavity material product clinically.
In prior art, existing cobalt chrome molybdenum material is improved makes it be suitable for the report of artificial tooth, be CN1827814A " a kind of dental ceramic stent cochrome that contains rare earth La " as the patent of invention publication number, and the patent of invention publication number is CN102002613A " co-Cr porcelain alloy material for dentistry ".Although above-mentioned patent application never ipsilateral is studied and reports than prior art, certain improvement has been arranged to this class material.But be proven, the material of its preparation can not reach the mechanical property that its description is claimed fully, and still be further improved with the adhesion of porcelain, particularly, the alloy material of above-mentioned patent report does not possess anti-microbial property, and well-known, for the artificial tooth material, it is vital possessing good anti-microbial property.
Summary of the invention
For the deficiencies in the prior art, one of purpose of the present invention is to provide a kind of antibiotic cochrome porcelain artificial tooth, and this artificial tooth mechanical property is good, and is strong with the ceramic material adhesion, and possesses excellent anti-microbial property.
For achieving the above object, the present invention adopts following technical scheme:
A kind of antibiotic cochrome porcelain artificial tooth, described artificial tooth is made of cochrome and its surperficial porcelain layer as matrix material, and the composition of described cochrome is comprised of following component by weight percentage: Cr27.5-28.5, Mo 9.5-11.5, W 3-5, Mn 2.5-3.5, Nb 1.5-2.5, Si 1-2, Ag 0.8-1.2, Cu 1.5-2.5, Ce 0.5-0.7, surplus is Co; The tensile strength of this cochrome is higher than the 960MPa left and right, and yield strength is higher than the 730MPa left and right, and Vickers hardness is higher than the 550HV left and right, and the cobalt chromio body alloy of this artificial tooth adopts the molding of evaporative pattern cast.
This artificial tooth can be prepared as follows:
1) make the evaporative pattern apperance, then external coating coating, put it into sandbox after band coating drying, and the back-up sand consolidation, prepares the cast apperance, and be placed on the pouring platform that vibrating device is all arranged;
2) by said ratio, the raw materials such as ingot, intermediate alloy are put into induction furnace and melt, liquation is rear test and adjusting component evenly, makes it meet above-mentioned scope, then adjusts pouring temperature, makes it higher than alloy melting point 30-40 ℃ left and right, prepares cast;
3) open vibrating device, making frequency of vibration is about 140-160Hz, and amplitude is about 4-6mm; Then with the 2nd) step liquation pour into;
4) after cooling and cleaning, the artificial tooth blank heating that obtains to 1000-1020 ℃ of left and right, is then used-320 order zirconium oxide sandblasts, then ultrasonic waves for cleaning, conventional porcelain.
Adopting process advanced person's lost foam casting process, and adopt vibration moulding in casting process, make the evaporative pattern apperance gasify and get rid of rapidly, and make the artificial tooth blank feeding of preparation good, shrinkage cavity, rarefaction defect are few, thereby guaranteed the realization of excellent mechanical performances, made simultaneously alloy have good apparent condition, be conducive to the combination of itself and ceramic material.
The present invention has following beneficial effect:
1) determine the composition of alloy on the basis of great many of experiments, wherein added appropriate Ag and Cu, made the alloy of preparation have good spectrum anti-microbial property.
2) consider interpolation Ag and Cu, in order to improve the combination property of alloy, all the other components are adjusted, add appropriate Nb and improve grain size, improve microstructure, and coordinate adjustment Co, Cr, Mo, W, the content of Mn makes to have reached the coordination technique effect between each component and content.Make the preparation alloy not only not reduce performance because of interpolation Ag and Cu, obtained on the contrary mechanical property preferably: tensile strength is higher than 960MPa, and yield strength is higher than 730MPa, and Vickers hardness is higher than 550HV.
3) add rare earth element ce, and suitably improve its content than prior art, improve the microstructure form of alloy, thereby improve the performance of material, particularly regulate the coefficient of expansion and improve surface property, make the adhesion of the alloy of preparation and porcelain body good.
The specific embodiment
Embodiment one
A kind of antibiotic cochrome porcelain artificial tooth, described artificial tooth is made of cochrome and its surperficial porcelain layer as matrix material, and the composition of described cochrome is comprised of following component by weight percentage: Cr27.5, and Mo 11.5, W 3, Mn 3.5, and Nb 1.5, and Si 2, Ag 0.8, Cu 2.5, and Ce 0.5, and surplus is Co; The tensile strength of this cochrome is higher than 960MPa, and yield strength is higher than 730MPa, and Vickers hardness is higher than 550HV, and the cobalt chromio body alloy of this artificial tooth adopts the molding of evaporative pattern cast.
Embodiment two
A kind of antibiotic cochrome porcelain artificial tooth, described artificial tooth is made of cochrome and its surperficial porcelain layer as matrix material, and the composition of described cochrome is comprised of following component by weight percentage: Cr28.5, and Mo 9.5, W 5, Mn 2.5, and Nb 2.5, and Si 1, Ag 1.2, Cu 1.5, and Ce 0.7, and surplus is Co; The tensile strength of this cochrome is higher than 960MPa, and yield strength is higher than 730MPa, and Vickers hardness is higher than 550HV, and the cobalt chromio body alloy of this artificial tooth adopts the molding of evaporative pattern cast.
Embodiment three
A kind of antibiotic cochrome porcelain artificial tooth, described artificial tooth is made of cochrome and its surperficial porcelain layer as matrix material, and the composition of described cochrome is comprised of following component by weight percentage: Cr28.0, and Mo 10.5, W 4, Mn 3.0, and Nb 2.0, and Si 1.5, Ag 1.0, Cu 2.0, and Ce 0.6, and surplus is Co; The tensile strength of this cochrome is higher than 960MPa, and yield strength is higher than 730MPa, and Vickers hardness is higher than 550HV, and the cobalt chromio body alloy of this artificial tooth adopts the molding of evaporative pattern cast.
Applicant's statement, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, does not mean that namely the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.The person of ordinary skill in the field should understand, any improvement in the present invention is to the interpolation of the equivalence replacement of each raw material of product of the present invention and auxiliary element, the selection of concrete mode etc., within all dropping on protection scope of the present invention and open scope.
Claims (1)
1. an antibiotic cochrome porcelain artificial tooth, is characterized in that, described artificial tooth is made of cochrome and its surperficial porcelain layer as matrix material, the composition of described cochrome is comprised of following component by weight percentage: Cr 27.5-28.5, Mo 9.5-11.5, W 3-5, Mn 2.5-3.5, Nb 1.5-2.5, Si 1-2, Ag 0.8-1.2, Cu 1.5-2.5, Ce 0.5-0.7, surplus is Co; The tensile strength of this cochrome is higher than the 960MPa left and right, and yield strength is higher than the 730MPa left and right, and Vickers hardness is higher than the 550HV left and right, and the cobalt chromio body alloy of this artificial tooth adopts the molding of evaporative pattern cast.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210595082.XA CN103083101B (en) | 2012-12-26 | 2012-12-26 | Antibacterial cobalt-chromium alloy porcelain false tooth |
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| CN201210595082.XA CN103083101B (en) | 2012-12-26 | 2012-12-26 | Antibacterial cobalt-chromium alloy porcelain false tooth |
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| CN103083101A true CN103083101A (en) | 2013-05-08 |
| CN103083101B CN103083101B (en) | 2015-05-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576533A (en) * | 2018-11-13 | 2019-04-05 | 佛山市佛冠义齿有限公司 | A kind of antimicrobial form cochrome and preparation method thereof |
| CN111996415A (en) * | 2020-07-02 | 2020-11-27 | 俞光锋 | Cobalt-chromium alloy biological material and preparation method thereof |
| CN114260452A (en) * | 2021-12-28 | 2022-04-01 | 南通金源智能技术有限公司 | Method for preparing cobalt-chromium alloy fixed denture and movable denture by vacuum hot-pressing sintering |
Citations (5)
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|---|---|---|---|---|
| US4236922A (en) * | 1977-03-22 | 1980-12-02 | Etablissement Dentaire Ivoclar | Dental alloy of bismuth-tin with additions of Ag, Sb and Cu |
| JPS59232248A (en) * | 1983-05-28 | 1984-12-27 | デグツサ・アクチエンゲゼルシヤフト | Cobalt alloy for manufacturing fixable or mountable false tooth |
| US20050158693A1 (en) * | 2002-04-22 | 2005-07-21 | Arun Prasad | Dental alloys |
| CN1831166A (en) * | 2005-02-16 | 2006-09-13 | Bego布雷默戈尔德施雷格爱威尔海姆.赫伯斯特两合公司 | Burning-on alloy for the production of ceramically veneered dental restorations |
| CN1916213A (en) * | 2005-08-17 | 2007-02-21 | 甘肃省机械科学研究院 | Antibacterial memory alloy material |
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2012
- 2012-12-26 CN CN201210595082.XA patent/CN103083101B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4236922A (en) * | 1977-03-22 | 1980-12-02 | Etablissement Dentaire Ivoclar | Dental alloy of bismuth-tin with additions of Ag, Sb and Cu |
| JPS59232248A (en) * | 1983-05-28 | 1984-12-27 | デグツサ・アクチエンゲゼルシヤフト | Cobalt alloy for manufacturing fixable or mountable false tooth |
| US4606887A (en) * | 1983-05-28 | 1986-08-19 | Degussa Aktiengesellschaft | Cobalt alloys for the production of dental prothesis |
| US20050158693A1 (en) * | 2002-04-22 | 2005-07-21 | Arun Prasad | Dental alloys |
| CN1831166A (en) * | 2005-02-16 | 2006-09-13 | Bego布雷默戈尔德施雷格爱威尔海姆.赫伯斯特两合公司 | Burning-on alloy for the production of ceramically veneered dental restorations |
| CN1916213A (en) * | 2005-08-17 | 2007-02-21 | 甘肃省机械科学研究院 | Antibacterial memory alloy material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576533A (en) * | 2018-11-13 | 2019-04-05 | 佛山市佛冠义齿有限公司 | A kind of antimicrobial form cochrome and preparation method thereof |
| CN111996415A (en) * | 2020-07-02 | 2020-11-27 | 俞光锋 | Cobalt-chromium alloy biological material and preparation method thereof |
| CN111996415B (en) * | 2020-07-02 | 2021-04-27 | 中怡(深圳)医疗科技集团有限公司 | Cobalt-chromium alloy biological material and preparation method thereof |
| CN114260452A (en) * | 2021-12-28 | 2022-04-01 | 南通金源智能技术有限公司 | Method for preparing cobalt-chromium alloy fixed denture and movable denture by vacuum hot-pressing sintering |
| CN114260452B (en) * | 2021-12-28 | 2023-12-29 | 南通金源智能技术有限公司 | Method for preparing cobalt-chromium alloy fixed denture and removable denture by vacuum hot-pressing sintering |
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| CN103083101B (en) | 2015-05-20 |
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Inventor after: Wang Hao Inventor after: Liu Xiangjian Inventor after: Chen Xiaohua Inventor after: Liang Pengwei Inventor after: Feng Tianyuan Inventor before: Hu Jingzhi |
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Effective date of registration: 20151223 Address after: And building 519000 Guangdong province Zhuhai Nanping Science and Technology Industrial Park West Road No. 2, a seven screen factory Patentee after: Shimmer Computerized Dental Technology Co., Ltd. Address before: 315177 Zhejiang province Ningbo city Yinzhou District town water village turnip Patentee before: Ningbo Ruitong New Material Technology Co., Ltd. |