CN1823700A - Biological noble metal roast ceramic alloy for oral cavity plerosis - Google Patents
Biological noble metal roast ceramic alloy for oral cavity plerosis Download PDFInfo
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- CN1823700A CN1823700A CN 200510111796 CN200510111796A CN1823700A CN 1823700 A CN1823700 A CN 1823700A CN 200510111796 CN200510111796 CN 200510111796 CN 200510111796 A CN200510111796 A CN 200510111796A CN 1823700 A CN1823700 A CN 1823700A
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Abstract
A biologic noble metal-baked ceramic alloy for repairing tooth contains Au (80-88 Wt%), Pt (9-15), Zn (1-2.2), In (0.2-1.2), Fe (0.2-0.8), Rh (0.2-0.8) and Ir (0.1-0.6). Its advantages are high biocompatibility and anticorrosion nature, no by-effect, not decoloring, and uniform mechanical performance.
Description
Technical field
What the present invention relates to is a kind of precious metal alloys that are used for dental ceramic repair materials field, specifically, is a kind of biological noble metal roast ceramic alloy for oral cavity plerosis.
Background technology
In the dental prosthetic field, demand attractive in appearance makes the porcelain metal restoration be subjected to extensive welcome.This kind porcelain recovery technique is several layers of ceramics in fusing under the high temperature on the metallic substrates that casts out and covering, thereby obtains the complex of metal inner bottom and ceramic shell, is used for clinical dental prosthetic.This dummy has the very good mechanical properties of metal and the aesthetic property and the biocompatibility of pottery concurrently.Because ceramic prosthesis is to be used in the oral cavity, must have good mechanical performance and biocompatibility as the metal material of substrate, and other physical and chemical performances.Yield strength (the being the disproportional extension strength) Rp of American National Standards Institute (ANSI)/ADA and the ISO of International Standards Organization 9693 regulation alloys
0.2Should not be lower than 250MPa, elongation after fracture should be greater than 3%.Precious metal alloys are owing to have splendid biocompatibility, extraordinary mechanical performance, combination property such as the casting accuracy of height and become the first-selection of oral cavity porcelain reparation with alloy.That commonly used is high golden series alloy (the about 78-87% of weight percentage of gold).The gross weight percentage composition of this alloy series inert metal (gold+platinum group metal) is about 97%, and this makes that such alloy resistance to corrosion is very strong, and the bio-safety performance is also well guaranteed.Other has not commensurability indium, zinc, and ferrum, the interpolation of stannum and some trace element, they mainly act as the reinforced alloys matrix, promote golden porcelain combination, and crystal grain thinning etc.
Find that through literature search the high golden porcelain alloy of report contains palladium (Pd) mostly, belong to Au-Pt-Pd system prior art.As European patent EP 1193320: the molten attached technology of porcelain is with high golden tooth section's alloy (Alloy fordental use of high gold content for metal fusing ceramic technique), its weight percentages of components is golden 80-86.5%, platinum 7.1-13.0%, palladium 0.1-8.0%, zinc 0.7-3.5%, silver 0-1.2% and some other micro-crystal grain thinning element.Clinical evidence shows that palladium has side effect to human body, as anaphylaxis.Thereby be necessary the exploitation no palladic biotype porcelain alloy.In addition,, and be difficult to mostly obtain to improve, thereby be necessary to develop the porcelain alloy that can improve alloy rigidity and intensity by heat treatment before the porcelain by heat treatment before the porcelain because these alloys are not good enough in the hardness and the intensity of as cast condition.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of used for stomatological repair precious metal stove enamel alloy is provided, make it under the prerequisite of physicochemical property that does not reduce alloy and clinical result of use, not containing has the side effect palladium to human body, and can improve its hardness and intensity mechanical property by heat treatment before the porcelain, be applicable to clinical multiple instructions for use.
The present invention is achieved by the following technical solutions, and component of the present invention and percentage by weight thereof are: gold 80.0～88.0%, platinum 9.0～15.0%, zinc 1.0～2.2%, indium 0.2～1.2%, ferrum 0.2～0.8%, rhodium 0.2～0.8%, iridium 0.1～0.6%.This composition range can be further defined to: gold 83.0～88.0%, platinum 9.0～13.0%, zinc 1.0～2.0%, indium 0.2～0.7%, ferrum 0.2～0.8%, rhodium 0.2～0.8%, iridium 0.1～0.3%.The noble metal of alloy of the present invention (Au+Pt) content reaches more than 95%, this corrosion resistance and biological safety from improving alloy in essence.
In the alloy of the present invention, gold makes alloy that stronger corrosion resistance and anti-dark and gloomy property, advantages of good casting, ductility and Se Ze be arranged; Platinum can improve the fusing point of alloy, increases yield strength, reduces the alloy thermal coefficient of expansion, simultaneously, improves the corrosion resistance and the anti-dark and gloomy property of alloy; Zinc stops the air-breathing effect of burning in the process of casting, increase the mobile surface tension that reduces, and improves the casting character of alloy, and certain bonded effect of promotion gold porcelain is also arranged simultaneously; The main effect of indium and ferrum is to improve hardness of alloy and yield strength, improves the golden porcelain binding ability of alloy; Iridium and rhodium are the grain refinement element, help to form uniform microstructure, improve yield strength and percentage elongation, improve hardness of alloy and yield strength simultaneously.
Alloy of the present invention can be at vacuum induction or non-consumable electric arc melting, and the alloy after the melting pours in vacuum drying oven in the prefabricated model (copper mold), and behind cooling, delivery, the cold bundle, cutting into specification is 1.0mm * 10.0mm * 5.3mm, and weight is about the finished product of 1g/ sheet.
The present invention is applicable to dental ceramic reparation hat, bridge, long bridge etc.Porcelain reparation of the present invention noble metal high gold-content alloy and existing alloy phase ratio have the following advantages:
(1) bio-compatible performance excellence: bullion content reaches more than 95% in the alloy of the present invention, and this has guaranteed the corrosion resistance of this alloy.Do not contain palladium in the alloy of the present invention, belong to the biotype porcelain alloy, can not cause side effect human body.
(2) have good aesthetic features: alloy of the present invention is faint yellow, near general human body color of teeth.Alloy of the present invention is argentiferous and copper not, can not cause the porcelain layer variable color, also can not influence golden porcelain combination.
(3) air cooling is to the preceding heat treatment of the porcelain of room temperature then to be incubated 15 minutes down by 980 ℃, and alloy can obtain uniform microscopic structure, and mechanical property is obviously promoted, and helps to improve the performance in the porcelain process.
The specific embodiment
Provide embodiment below in conjunction with content of the present invention:
Embodiment one
Alloyage, its component and percentage by weight are: gold 86%, platinum 11%, zinc 1.5%, indium 0.5%, ferrum 0.2%, rhodium 0.7%, iridium 0.1%.
Become the homogeneous bulky alloy through the non-consumable electric arc melting, and be processed into the thin slice finished product.Through resistance heated or eddy-current heating, remelting is cast into various Oral Repair finished products or mechanical properties test sample.The performance data of alloy is: color: light yellow, and density: 18.7g/cm
3, fusion range: 1030-1130 ℃.Under the as-cast condition, the mechanical performance data of alloy is: yield strength: Rp
0.2=370 ± 20MPa, tensile strength: Rm=500 ± 20MPa, elongation after fracture: A 〉=6%, Vickers hardness: HV0.3/45=150 ± 10.Air cooling was under the porcelain state of room temperature then in 15 minutes in insulation under 980 ℃ for sample or sample, and the mechanical performance data of alloy is: yield strength: Rp
0.2=550 ± 20MPa, tensile strength: Rm=610 ± 20MPa, elongation after fracture: A 〉=4%, Vickers hardness: HV0.3/45=185 ± 10.
Embodiment two
Alloyage, its component and percentage by weight are: gold 88%, platinum 9.0%, zinc 1.0%, indium 0.2%, ferrum 0.8%, rhodium 0.8%, iridium 0.2%.
Become the homogeneous bulky alloy through vacuum melting, and be processed into the thin slice finished product.Through resistance heated or eddy-current heating, remelting is cast into various Oral Repair finished products or mechanical properties test sample.The performance data of alloy is: color: light yellow, and density: 18.7g/cm
3, fusion range: 1010-1100 ℃.Under the as-cast condition, the mechanical performance data of alloy is: yield strength: Rp
0.2=370 ± 20MPa, tensile strength: Rm=480 ± 20MPa, elongation after fracture: A 〉=7%, Vickers hardness: HV0.3/45=150 ± 10.Air cooling was under the porcelain state of room temperature then in 15 minutes in insulation under 980 ℃ for sample or sample, and the mechanical performance data of alloy is: yield strength: Rp
0.2=550 ± 20MPa, tensile strength: Rm=600 ± 20MPa, elongation after fracture: A 〉=5%, Vickers hardness: HV0.3/45=190 ± 10.
Embodiment three
Alloyage, its component and percentage by weight are: gold 83%, platinum 13%, zinc 2.0%, indium 0.7%, ferrum 0.5%, rhodium 0.5%, iridium 0.3%.
Become the homogeneous bulky alloy through vacuum non-consumable electric arc melting, and be processed into the thin slice finished product.Through resistance heated or eddy-current heating, remelting is cast into various Oral Repair finished products or mechanical properties test sample.The performance data of alloy is: color: light yellow, and density: 18.3g/cm
3, fusion range: 1060-1160 ℃.Under the as-cast condition, the mechanical performance data of alloy is: yield strength: Rp
0.2=400 ± 20MPa, tensile strength: Rm=520 ± 20MPa, elongation after fracture: A 〉=6%, Vickers hardness: HV0.3/45=170 ± 10.Air cooling was under the porcelain state of room temperature then in 15 minutes in insulation under 980 ℃ for sample or sample, and the mechanical performance data of alloy is: yield strength: Rp
0.2=580 ± 20MPa, tensile strength: Rm=620 ± 20MPa, elongation after fracture: A 〉=4%, Vickers hardness: HV0.3/45=210 ± 10.
Embodiment four
Alloyage, its component and percentage by weight are: gold 80%, platinum 15%, zinc 2.2%, indium 1.2%, ferrum 0.5%, rhodium 0.5%, iridium 0.6%.
Become the homogeneous bulky alloy through vacuum non-consumable electric arc melting, and be processed into the thin slice finished product.Through resistance heated or eddy-current heating, remelting is cast into various Oral Repair finished products or mechanical properties test sample.The performance data of alloy is: color: light yellow, and density: 18.3g/cm
3, fusion range: 1060-1160 ℃.Under the as-cast condition, the mechanical performance data of alloy is: yield strength: Rp
0.2=380 ± 20MPa, tensile strength: Rm=500 ± 20MPa, elongation after fracture: A 〉=6%, Vickers hardness: HV0.3/45=160 ± 10.Air cooling was under the porcelain state of room temperature then in 15 minutes in insulation under 980 ℃ for sample or sample, and the mechanical performance data of alloy is: yield strength: Rp
0.2=570 ± 20MPa, tensile strength: Rm=600 ± 20MPa, elongation after fracture: A 〉=4%, Vickers hardness: HV0.3/45=200 ± 10.
Claims (3)
1, a kind of biological noble metal roast ceramic alloy for oral cavity plerosis is characterized in that, component and percentage by weight are: gold 80.0～88.0%, platinum 9.0～15.0%, zinc 1.0～2.2%, indium 0.2～1.2%, ferrum 0.2～0.8%, rhodium 0.2～0.8%, iridium 0.1～0.6%.
2, biological noble metal roast ceramic alloy for oral cavity plerosis according to claim 1 is characterized in that, component and percentage by weight are: gold 83.0～88.0%, platinum 9.0～13.0%, zinc 1.0～2.0%, indium 0.2～0.7%, ferrum 0.2～0.8%, rhodium 0.2～0.8%, iridium 0.1～0.3%.
3, biological noble metal roast ceramic alloy for oral cavity plerosis according to claim 1 is characterized in that, component and percentage by weight are: gold 83%, platinum 13%, zinc 2.0%, indium 0.7%, ferrum 0.5%, rhodium 0.5%, iridium 0.3%.
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| CN 200510111796 CN1823700A (en) | 2005-12-22 | 2005-12-22 | Biological noble metal roast ceramic alloy for oral cavity plerosis |
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| CN 200510111796 CN1823700A (en) | 2005-12-22 | 2005-12-22 | Biological noble metal roast ceramic alloy for oral cavity plerosis |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103263360A (en) * | 2012-12-07 | 2013-08-28 | 璨圆光电股份有限公司 | Dental composite resin fitting natural tooth and preparation method thereof |
| CN107858557A (en) * | 2017-11-17 | 2018-03-30 | 梁乔保 | A kind of gear division antibacterial porcelain alloy and preparation method thereof |
| CN107937793A (en) * | 2017-11-17 | 2018-04-20 | 梁乔保 | A kind of antibacterial porcelain alloy for Dental Erosion and preparation method thereof |
-
2005
- 2005-12-22 CN CN 200510111796 patent/CN1823700A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103263360A (en) * | 2012-12-07 | 2013-08-28 | 璨圆光电股份有限公司 | Dental composite resin fitting natural tooth and preparation method thereof |
| CN103263360B (en) * | 2012-12-07 | 2015-09-30 | 璨圆光电股份有限公司 | Dentistry composite resin of matching nature tooth and preparation method thereof |
| CN107858557A (en) * | 2017-11-17 | 2018-03-30 | 梁乔保 | A kind of gear division antibacterial porcelain alloy and preparation method thereof |
| CN107937793A (en) * | 2017-11-17 | 2018-04-20 | 梁乔保 | A kind of antibacterial porcelain alloy for Dental Erosion and preparation method thereof |
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