CN103789567B - A kind of dentistry height palladium porcelain alloy material and preparation method and applications - Google Patents
A kind of dentistry height palladium porcelain alloy material and preparation method and applications Download PDFInfo
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- CN103789567B CN103789567B CN201410030697.7A CN201410030697A CN103789567B CN 103789567 B CN103789567 B CN 103789567B CN 201410030697 A CN201410030697 A CN 201410030697A CN 103789567 B CN103789567 B CN 103789567B
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Abstract
The present invention is directed to the deficiency that prior art exists, use a kind of high palladium used for stomatological repair casting porcelain alloy, make it on the premise of not reducing alloy property and Clinical practice effect, there is good mechanical property, well corrosion resistance and antianaphylaxis, color and luster is attractive in appearance, and cost is only the 1/4～1/3 of billon.
Description
Technical field
Patent of the present invention relates to a kind of dentistry height palladium porcelain alloy material and preparation method and applications.
Background technology
After 20 beginning of the century precision casting technologies are introduced into dental prosthetic technique, metal material is the most formal to be entered
Dental restorative area, is still that the most widest material of Oral Repair application so far.
During dental prosthetic alloy development, three factors have impact on its clinical practice, including price,
Physical and mechanical properties (such as elastic modelling quantity, hardness, hot strength etc.), biocompatibility (corrosion behavior,
Cytotoxicity etc.).Along with the reach of science and the progress of society, corrosion behavior therein more comes into one's own,
And become the key factor of restriction dental alloy application.It is physico that metal erosion refers between metal and environment
Effect, this effect causes the change of metallicity, often results in metal, environment or its technology body constituted
It it is generating function infringement.Dental alloy is exposed to the oral cavity physical environment (temperature, stress) of mutability, chemistry
In environment (saliva, salt, liquid, medicine etc.), biotic environment (bacterial plaque being bonded on dummy),
Corrosion in various degree all can occur.But the extent of corrosion of various alloys and the harm to human body differ greatly.
The corrosion of dental alloy can cause aesthetic properties and physical property to reduce, taeniae telarum come biostimulation, even
Cause the fear of the public.China in 2009 also there occurs that nichrome baking-ceramic tooth corrosion product causes whole body not
The report of good reaction, thus cause patient that such material is repaired the query of safety.
Dental fear can be divided into noble metal casting alloy, semi-precious metal casting according to its bullion content
Make alloy, low noble metal alloy and base metal casting alloy.Bullion content being then classified as more than 85%
High precious metal alloys, semi-precious metal bullion content is between 60%～85%, and low noble metal casting is closed
The bullion content of gold, between 25%～60%, then belongs to non-noble metal alloy without noble metal component.
Dentistry height precious metal alloys are mainly rhotanium and plation, because of the castability that it is good, noble
Color and luster, excellent corrosion resistance and mechanical performance and become alloy material the earliest；Base metal is mainly
Cobalt chromium and nichrome, alloy is cheap, but there is corrosion-resistant and poor biocompatibility, and patient is to metal
The shortcomings such as ion allergy；Polarium and palladium-silver bullion content are relatively low, therefore are referred to as half your conjunction
Gold, alloy is similar to high gold-content alloy at aspects such as physics, machinery, chemical properties, and some performance is also advantageous over gold
Alloy, and price is only the 1/4～1/3 of billon.Compared with non-noble metal alloy, its biocompatibility,
Corrosion resistance is good, moderate, is therefore considered as a kind of preferable substitution material of high noble alloy.
Typical case palladium-silver system component be 56.5%～58Pd%, 27%～36Ag%, 8%～
13%In, 0.8%～1.5%Au, 1.5%～3.2%Ga, and other a small amount of function addition element such as Pt.
Along with the increase of palladium content, the decay resistance of alloy increases, and bio-compatible performance improves.Just because of bag
Include dental palladium-silver porcelain alloy material interior dental metal material to safety (biocompatibility) and
Effectiveness (physical property of alloy) has a unusual technology requirement, the most up to now China except
The introduction production of Qinhuangdao Ao Dante scientific & technical corporation has Argistar43+ palladium-silver, and (palladium-silver content is respectively
43wt% and 46wt%) outward, do not set foot in this field without manufacturer.The most also the U.S., Germany, day are only had
Basis, Switzerland etc. manufacture, owing to offshore company is for the occupying consideration to technical confidentiality and market,
The palladium-silver used in China market is occupied absolute system by the U.S., Germany, Japan, Switzerland etc.
Control status.The palladium content of these palladium-silvers is normally only at about 60wt%, and palladium content is more than 75%
High palldium alloy product is domestic, is not reported.
Through the literature search to prior art, find that relevant patent has, European patent EP 0904765: yellow
Golden dental alloy (Gold Colored Dental Alloy), its weight percentages of components is gold 60-90%,
Silver 0-20%, palladium 0-7%, copper 0-20%, platinum 0-11%, wherein possibly together with a small amount of indium, stannum, iridium etc..Beautiful
State's patent US3961420: modified model billon (the Dental restoration that dental ceramic is repaired can be used for
Combining dental porcelain and improved white gold alloy), its weight percentages of components is
Gold 50-54%, palladium 27-31%, silver 11-16%, wherein possibly together with a small amount of indium, stannum, iridium etc..Above product
Price is high, for developing Chinese Consumer's, beyond affordability.In view of this, country is by oral cavity porcelain
Material is defined as encouraging class developing industry, from the angle that industry is autonomous, it is necessary to develop and have and human body
Good biocompatibility, function admirable, the domestic dental palladium-silver porcelain alloy material of good looking appearance, with
Time break away from for a long time to the absolute dependence of import with meet tooth patient and enjoy the cheapness of odontotherapy.
Prior art is:
European patent EP 0904765: the dental alloy (Gold Colored Dental Alloy) of Gold production, its group
Dividing percentage by weight is gold 60-90%, silver 0-20%, palladium 0-7%, copper 0-20%, platinum 0-11%, wherein
Possibly together with a small amount of indium, stannum, iridium etc..
United States Patent (USP) US3961420: the modified model billon (Dental that dental ceramic is repaired can be used for
Restoration combining dental porcelain and improved white gold alloy), its component weight
Amount percentage ratio is gold 50-54%, palladium 27-31%, and silver 11-16%, wherein possibly together with a small amount of indium, stannum, iridium etc..
Summary of the invention
Non-noble metal alloy is mainly cobalt chromium and nichrome, and alloy is cheap, but exists corrosion-resistant and raw
Thing poor compatibility, patient is to shortcomings such as metal ion allergy.The price of high gold precious metal alloys is high,
For developing Chinese Consumer's, beyond affordability.Compared with alloy of the present invention, cost is higher.
Alloy needle of the present invention prior art is existed particularly in deficiency in price so that it is do not reducing
On the premise of alloy property and Clinical practice effect, there is good mechanical property, good corrosion resistance and
Antianaphylaxis, color and luster is attractive in appearance, and cost is only the 1/4～1/3 of billon.Compared with base metal metal,
Decay resistance and biocompatibility are splendid.
Precious Metals-Gold symbolic animal of the birth year ratio contour with billon, mechanical performance is more excellent, decay resistance and biocompatibility
Close, but have obvious price advantage.
The technical solution adopted in the present invention is:
A kind of dentistry height palladium porcelain alloy material, it is characterised in that include following components: palladium (Pd) 75～
80%, silver (Ag) 9～13%, gold (Au) 0～1%, platinum (Pt) 0.5～1.0%, indium (In)
8～12%, gallium (Ga) 1～2%.
Further, described dentistry height palladium porcelain alloy material, it is characterised in that this alloy material disproportional prolongs
Stretch intensity ＞ 500MPa, Metal-ceramic combining strength about 41.0～60.8MPa, elastic modulus G T.GT.GT
106.3MPa, elongation percentage ＞ 4%.
Further, the method for described dentistry height palladium porcelain alloy material, it is characterised in that join according to above-mentioned
Ratio dispensing, is then cut into metal fragment by dispensing, and uniform mixing is placed on WS-4 non-consumable vacuum and melts
Melting in furnace.Carry out pre-degasification, high pressure vacuum degasification successively, then re-use at high purity argon gas washing
Managing 2 times, set melting condition afterwards, described melting condition is: current parameters 100～290A, voltage
Parameter 220V, vacuum 5 × 10-3Pa.Overturn after being smelted into ingot shape, melt back 4 times, natural cooling
Rear taking-up, is finally rolled into the cuboid of about 1g.
Further, the application of described a kind of dentistry height palladium porcelain alloy material, it is characterised in that: this material
Can be used for the PFM of dental fixed and repaired and bridge and the metal crown of oral cavity fixed and repaired and bridge.
Beneficial effect:
1. price is low: the palladium-silver after being adjusted compared with the alloy of background technology, gold/platinum content by
50～90% drop to 1.0～2%.This kind of high palldium alloy is than the prices about 2/3 of billon.
2. there is good mechanical property.Nonproportional cyclic straining ＞ 500MPa, Metal-ceramic combining strength
41.0～60.8MPa, elastic modulus G T.GT.GT 106.3MPa, elongation percentage ＞ 4%, height palldium alloy of the present invention
Mechanical property considerably beyond ADA (ADA) standard specifies (the 4th class superstrength alloy,
Hardening state lower yield strength be σ 0.2=450MPa, elongation percentage is σ=3%) requirement.
3. there is good decay resistance.The content of palladium more than 75% after be known as high palldium alloy, it is resistance to
Corrosive nature is similar to billon noble metal, and pi of strength is better than billon.
4., through vacuum melting and vacuum casting, obtain the dental height palladium casting porcelain that metal degree of purity is high
Alloy.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.
A kind of dentistry height palladium porcelain alloy material, it is characterised in that include following components: palladium (Pd) 75～
80%, silver (Ag) 9～13%, gold (Au) 0～1%, platinum (Pt) 0.5～1.0%, indium (In)
8～12%, gallium (Ga) 1～2%.
This alloy material nonproportional cyclic straining ＞ 500MPa, Metal-ceramic combining strength about 41.0～
60.8MPa, elastic modulus G T.GT.GT 106.3MPa, elongation percentage ＞ 4%.
According to said ratio dispensing, then dispensing being cut into metal fragment, uniformly mixing is placed on WS-4
Melting in non-consumable vacuum melting furnace.Carry out pre-degasification, high pressure vacuum degasification successively, then re-use high-purity
Degree argon gas washing process 2 times, set melting condition afterwards, described melting condition is: current parameters 100～
290A, voltage parameter 220V, vacuum 5 × 10-3Pa.Overturn after being smelted into ingot shape, melt back 4 times,
Taking out after natural cooling, this material of cuboid being finally rolled into about 1g can be used for dental fixed and repaired use
PFM and bridge and the metal crown of oral cavity fixed and repaired and bridge.
Should be understood that these embodiments are merely to illustrate the present invention rather than limit the scope of the present invention.In addition
Should be understood that the present invention can be made respectively by those skilled in the art after having read the content that the present invention lectures
Planting and change or amendment, these equivalent form of values fall within the application appended claims limited range equally.
Claims (3)
1. a dentistry height palladium porcelain alloy material, it is characterised in that described alloy material is by following components group
Become: palladium 75～80%, silver 9～13%, gold 0～1%, platinum 0.5～1.0%, indium 8～12%,
Gallium 1～2%；Wherein, the nonproportional cyclic straining ＞ 500MPa of described alloy material, gold porcelain combines strong
Degree is 41.0～60.8MPa, elastic modulus G T.GT.GT 106.3MPa, elongation percentage ＞ 4%.
2. the method preparing dentistry height palladium porcelain alloy material as claimed in claim 1, its feature
Being, according to said ratio dispensing, then dispensing is cut into metal fragment, it is non-that uniform mixing is placed on WS-4
Melting in consumable vacuum melting furnace；Carry out pre-degasification, high pressure vacuum degasification successively, then re-use high-purity
Argon gas washing process 2 times, set melting condition afterwards, described melting condition is: current parameters 100～
290A, voltage parameter 220V, vacuum 5 × 10-3Pa；Overturn after being smelted into ingot shape, melt back 4 times,
Take out after natural cooling, be finally rolled into the cuboid of 1g.
3. the application of dentistry height palladium porcelain alloy material as claimed in claim 1, it is characterised in that: should
Material for the PFM of dental fixed and repaired and bridge and the metal crown of oral cavity fixed and repaired and
Bridge.
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| CN201410030697.7A CN103789567B (en) | 2014-01-22 | 2014-01-22 | A kind of dentistry height palladium porcelain alloy material and preparation method and applications |
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| CN201410030697.7A CN103789567B (en) | 2014-01-22 | 2014-01-22 | A kind of dentistry height palladium porcelain alloy material and preparation method and applications |
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| CN103789567B true CN103789567B (en) | 2016-09-21 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3830666A1 (en) * | 1988-09-09 | 1990-03-22 | Hafner C Gmbh & Co | Palladium basic alloys |
| US5174954A (en) * | 1991-03-01 | 1992-12-29 | Ivoclar N.A. | Palladium alloys for dental implant restorations |
| US5431875A (en) * | 1994-05-02 | 1995-07-11 | The J. M. Ney Company | Dental alloy producing light oxides |
| WO2010123488A1 (en) * | 2009-04-20 | 2010-10-28 | The Argen Corporation | Pd-ag-ga dental alloys with internal oxidation characteristics |
| CN103205594A (en) * | 2013-05-07 | 2013-07-17 | 四川奇和贵金属有限公司 | Palladium-silver alloy material for dental department |
-
2014
- 2014-01-22 CN CN201410030697.7A patent/CN103789567B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3830666A1 (en) * | 1988-09-09 | 1990-03-22 | Hafner C Gmbh & Co | Palladium basic alloys |
| US5174954A (en) * | 1991-03-01 | 1992-12-29 | Ivoclar N.A. | Palladium alloys for dental implant restorations |
| US5431875A (en) * | 1994-05-02 | 1995-07-11 | The J. M. Ney Company | Dental alloy producing light oxides |
| WO2010123488A1 (en) * | 2009-04-20 | 2010-10-28 | The Argen Corporation | Pd-ag-ga dental alloys with internal oxidation characteristics |
| CN103205594A (en) * | 2013-05-07 | 2013-07-17 | 四川奇和贵金属有限公司 | Palladium-silver alloy material for dental department |
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| CN103789567A (en) | 2014-05-14 |
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