WO2011149290A2 - 치과 도재소부용 금속 합금 및 치과 보철물 - Google Patents
치과 도재소부용 금속 합금 및 치과 보철물 Download PDFInfo
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- WO2011149290A2 WO2011149290A2 PCT/KR2011/003875 KR2011003875W WO2011149290A2 WO 2011149290 A2 WO2011149290 A2 WO 2011149290A2 KR 2011003875 W KR2011003875 W KR 2011003875W WO 2011149290 A2 WO2011149290 A2 WO 2011149290A2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys
- A61K6/844—Noble metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/04—Alloys based on a platinum group metal
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
Definitions
- the present invention relates to metal alloys, and more particularly, to a metal alloy for ceramic parts used for prosthetics in dentistry and dental prostheses using the same.
- the metal alloy for ceramic material parts is used in the oral cavity where various environmental changes such as temperature, acidity, and pressure occur in the human body, it requires not only excellent mechanical properties but also chemical stability and aesthetics. For example, because the metal alloy for ceramic parts is used in the oral cavity, there should be no corrosion or discoloration, and there should be no human hazard. In addition, the metal alloy for ceramic parts requires high mechanical properties because it must be able to withstand the pressure to chew food.
- gold-based alloys with high gold content are widely used for ceramic material parts.
- gold-based alloys are high in price, alternative alloys with similar properties and superior economics have been developed.
- gold-palladium alloys, silver-palladium alloys, nickel-chromium alloys and the like have been studied.
- nickel-chromium alloys are advantageous in terms of cost but have the problem of causing allergic reactions or the accumulation of heavy metals in the body.
- Other alloys have problems such as causing discoloration, causing cytotoxicity, low cohesion with porcelain, or low castability. Accordingly, the present invention has been made to solve the above problems.
- the foregoing problem has been presented by way of example, and the scope of the present invention is not limited by this problem.
- the metal alloy for dental ceramic parts includes more than 0 and 35% by weight or less of gold (Au); 5 to 35 weight percent silver (Ag); 6-40% by weight of indium (In); 30 to 70 weight percent palladium (Pd); And a total of more than 0 and 5.0 wt% or less, and includes at least one element selected from the group consisting of boron (B), germanium (Ge), zirconium (Zr), silicon (Si), and iron (Fe).
- Zn zinc
- tin sulfur
- Ga gallium
- Se selenium
- C carbon
- Sb antimony
- Cu copper
- a total of more than 0 weight may be further included 10.0% or less.
- chromium (Cr), niobium (Nb), magnesium (Mg), titanium (Ti), cobalt (Co), aluminum (Al), vanadium (V), tantalum (Ta), At least one element selected from the group consisting of molybdenum (Mo) and tungsten (W) may further include more than 0 and no more than 10.0 wt%.
- a metal alloy for dental ceramic parts includes more than 0 and 35% by weight or less of gold (Au); 5 to 35 weight percent silver (Ag); 12.0 to 35.0 weight percent indium (In); At least one selected from the group consisting of zinc (Zn), tin (Sn), gallium (Ga), selenium (Se), carbon (C), antimony (Sb), and copper (Cu) Element of; At least one element selected from the group consisting of boron (B), germanium (Ge), zirconium (Zr), silicon (Si), and iron (Fe); It is more than 0 and 10.0 weight% in total, and it is chromium (Cr), niobium (Nb), magnesium (Mg), titanium (Ti), cobalt (Co), aluminum (Al), vanadium (V), tantalum (Ta), and molybdenum At least one element selected from the group consisting of (Mo) and tungsten (W); At least one selected from the group consisting of the group consisting
- the content of indium (In) may be 12.0 to 26.0 wt%, and the melting temperature of the metal alloy may be 1030 to 1200 ° C.
- the content of indium (In) may be 20.3 to 30.0 wt%, and the melting temperature of the metal alloy may be 920 to 1040 ° C.
- a metal alloy for dental ceramic parts includes more than 0 and 85% by weight of gold (Au); More than 0 and 35% by weight of silver (Ag); 6-40% by weight of indium (In);
- first element selected from the group consisting of boron (B), germanium (Ge), zirconium (Zr), silicon (Si), and iron (Fe); And more than 0 and not more than 10.0 wt%, and include chromium (Cr), niobium (Nb), magnesium (Mg), titanium (Ti), cobalt (Co), aluminum (Al), vanadium (V), tantalum (Ta), It
- the at least one first element comprises more than 0 and less than 1.0 wt% silicon (Si) and / or the at least one second element ranges from 0 to 5.0 wt% It may include cobalt (Co) of.
- the firing temperature of the metal alloy and ceramic ceramic material may have a range of 900 to 980 °C.
- the sum is more than 0 and 10.0 wt% or less, and zinc (Zn), tin (Sn), gallium (Ga), selenium (Se), carbon (C), antimony (Sb), and copper ( At least one third element selected from the group consisting of Cu) may be further provided.
- the at least one first element comprises more than 0 and less than 1.0 wt% silicon (Si), and the at least one second element is in the range of 0 to 5.0 wt% cobalt
- the at least one third element, including (Co) may comprise greater than zero and up to 5.0 wt.% Copper (Cu).
- the dental prosthesis of one embodiment of the present invention can be manufactured using at least one of the above-described metal alloys for dental ceramics parts.
- a method for producing a dental prosthesis of one embodiment of the present invention is provided.
- a metal alloy for dental ceramic baking is pretreated to remove metal oxides from the surface.
- Ceramic ceramic material is bonded onto the metal alloy at a firing temperature range of 900 to 980 ° C.
- the metal alloy for dental ceramic parts according to some embodiments of the present invention can increase the palladium and indium content to increase the economic efficiency, and can also secure excellent mechanical properties, chemical stability and high body compatibility through other additional elements.
- the metal alloy for dental ceramic parts can prevent deformation of the alloy during high temperature firing with ceramic ceramics by appropriately adjusting the alloy component in the palladium-indium-gold-silver based alloy.
- Figure 2 is a photograph showing a dental prosthesis prepared by firing after the pretreatment according to the experimental example.
- the weight percent (wt%) is expressed as a percentage of the weight of the component in the weight of the total alloy. It can be understood that the range for the weight percent does not include the boundary value when it is above or below, but includes the boundary value when it is simply designated as a range or above or below.
- unavoidable impurities may refer to conventional impurities that may be introduced unintentionally in the manufacture of a metal alloy or prosthesis.
- the metal alloy part for dental ceramic material may be formed by mixing gold (Au), silver (Ag), and a first additive element with palladium (Pd).
- Palladium can be provided as a major element to replace a substantial portion of gold and platinum and is known to be harmless to the human body.
- the content of palladium may vary depending on the content of gold, silver and additional elements, and may be selected with them to achieve an appropriate alloy performance for dental ceramics. For example, for cost reduction, palladium can make up the balance of the alloy and can be contained in the range of 30 to 70% by weight. As another example, when the content of gold is increased, palladium may be appropriately selected in the range of 5% or more.
- the metal alloy for the ceramic material part may include unavoidable impurities that are inadvertently contained at the alloying stage or due to impurities of each element itself.
- Gold can be added to improve corrosion resistance, discoloration resistance and ductility, and the content can be changed in consideration of the content of other elements such as palladium, and is not particularly limited.
- the content of gold may be limited to 40% by weight, in particular 35% by weight or less, and especially when the content of alternative elements is high, it may be limited to 25% by weight or less.
- a portion of the gold may be replaced by platinum (Pt).
- Pt platinum
- the total content of gold and platinum may be 35% by weight or less.
- platinum is expensive and the melting temperature is high and may be limited to 20% by weight or less in the casting alloy.
- the palladium content may be lowered and the gold content may be increased to about 85%.
- Silver (Ag) may be added together with palladium to solve problems such as discoloration generation, fracture, hydrogen embrittlement, lowering castability and the like (greater than 0% range). Furthermore, silver may be added at least 5% by weight in order to suppress discoloration and improve elongation, and may be limited to 35% by weight or less in consideration of yellowing. Under more stringent conditions, the content of silver may be limited in the range of 13 to 31% by weight in order to maintain the color of the alloy.
- Indium (In) may be added to improve the bonding strength with the porcelain and maintain the aesthetics.
- the minimum content of indium may be 3% by weight in order to ensure the minimum bonding force with the ceramic material.
- the content of indium is at least 6% by weight or more, the color of the alloy becomes yellow, and yellow becomes clear as the content of indium increases.
- the content of indium is increased, the melting temperature of the alloy is lowered and its coefficient of thermal expansion is increased, the indium content is limited to within 40% and can be appropriately selected according to the firing temperature of the alloy.
- the content of indium may be further limited to within 35% by weight.
- the range of firing temperature may be selected differently depending on the ceramic powder, but the approximate range of low temperature firing refers to the firing temperature of about 800 ° C. or less, and the range of high temperature firing It may refer to a firing temperature of about 900 to 980 °C.
- the first additional element may include at least one element selected from the group consisting of boron (B), germanium (Ge), zirconium (Zr), silicon (Si), and iron (Fe).
- the first addition element may offset the lowering of the melting temperature of the alloy and the increase in the coefficient of thermal expansion due to the increase in indium.
- the content of the first additive element is limited to a total of 0.1% by weight or more and up to 10.0% by weight in consideration of excessive increase in melting temperature of the alloy and reduction in coefficient of thermal expansion, and under stricter conditions, oxide formation such as borax and discoloration of the alloy are thereby prevented. In order to suppress it may be limited to up to 6.0% by weight.
- the metal alloy for dental ceramic parts may be formed by mixing gold (Au), silver (Ag), a first additive element, and a second additive element with palladium (Pd).
- the metal alloy for ceramic material part may include unavoidable impurities which are inadvertently contained at the alloying stage or due to impurities of each element itself.
- the description of palladium (Pd), gold (Au), silver (Ag) and the first additive element may refer to the above-described embodiment.
- the second additive element is chromium (Cr), niobium (Nb), magnesium (Mg), titanium (Ti), cobalt (Co), aluminum (Al), vanadium (V), tantalum (Ta), molybdenum (Mo) and It may contain at least one element selected from the group consisting of tungsten (W).
- the second addition element can counteract the lowering of the melting temperature of the alloy and the increase in the coefficient of thermal expansion due to the increase in indium similarly to the first addition element. As a result, the second additive element may help to increase the content of indium in the alloy, thereby making the color of the alloy more yellow.
- the second additive element may suppress an increase in the strain of the alloy due to an increase in indium during the ceramic ceramic material and the firing on the metal alloy.
- Indium in the metal alloy may flow down together with the ceramic ceramic upon high temperature firing with the ceramic ceramic. For this reason, when the indium content in the metal alloy is high, such metal alloy is difficult to be used for high temperature firing.
- the second additive element is combined with the indium to suppress the deformation of the indium during the high temperature firing, thereby helping to increase the content of indium in the metal alloy for high temperature firing.
- the second additive element may be contained in an amount of 0.1 wt% or more in order to suppress deformation of indium.
- the content of the second additional element may be limited to within 10.0% by weight in total in consideration of the color change and castability of the alloy, and further 5.0 in consideration of the excessive increase in the melting temperature of the alloy and reduction of the coefficient of thermal expansion. It may also be limited to within weight percent.
- the metal alloy for dental ceramics part may be formed by mixing gold (Au), silver (Ag), a first additional element, and a third additional element with palladium (Pd).
- the metal alloy for ceramic material part may include unavoidable impurities which are inadvertently contained at the alloying stage or due to impurities of each element itself.
- the description of palladium (Pd), gold (Au), silver (Ag) and the first additive element may refer to the above-described embodiment.
- the third additional element includes at least one element selected from the group consisting of zinc (Zn), tin (Sn), gallium (Ga), selenium (Se), carbon (C), antimony (Sb), and copper (Cu) can do.
- the third addition element may be added to preserve the influence by the element which interferes with the yellow appearance of the alloy by indium, such as the second addition element. Furthermore, the third addition element can prevent the discoloration caused by the first addition element.
- the increase of the third additive element may reduce the castability of the alloy and further increase the cytotoxicity, lower the melting temperature, corrosion resistance, etc., and is limited to 10.0% by weight or less, and in the case of copper to 5.0% by weight or less May be limited.
- the metal alloy for dental ceramic parts may be formed by mixing gold (Au), silver (Ag), a first additive element, and a fourth additive element with palladium (Pd).
- the metal alloy for ceramic material part may include unavoidable impurities which are inadvertently contained at the alloying stage or due to impurities of each element itself.
- the description of palladium (Pd), gold (Au), silver (Ag) and the first additive element may refer to the above-described embodiment.
- the fourth additional element is at least one element selected from the group consisting of iridium (Ir), rhenium (Re), rhodium (Rh), ruthenium (Ru), lanthanum (La), osmium (Os) and bismuth (Bi). It may contain more than 2% by weight.
- the fourth additive element can improve castability or refine the crystal grains of the alloy to improve its strength, and in this respect the content can be controlled. For example, when the content of the fourth additional element exceeds 2% by weight, the grain refining effect is weakened, so the content can be limited to within 2% by weight.
- the metal alloy for dental ceramic parts according to another embodiment of the present invention, gold (Au), silver (Ag), and a first additional element are added to palladium (Pd), and additionally, second to fourth additional elements. It can be formed by mixing two or more of them.
- the metal alloy for ceramic material part may include unavoidable impurities which are inadvertently contained at the alloying stage or due to impurities of each element itself.
- the function of each element may refer to the description of the above-described embodiments.
- the metal alloy for ceramic parts according to the above-described embodiments of the present invention lowers the expensive gold and platinum content and instead increases the palladium and indium content, thereby increasing the economic efficiency, and through other additional elements, excellent mechanical properties, chemical stability, and high body weight. Conformance can be ensured.
- Dental prosthesis according to an embodiment of the present invention can be manufactured using the above-described metal alloy for ceramic parts.
- the dental prosthesis may be formed by bonding a ceramic porcelain on the metal alloy described above.
- Such a dental prosthesis can have high commerciality by fusing the excellent mechanical / chemical properties of the metal alloy with the aesthetics of the ceramic ceramic.
- Table 1 shows the composition and physical properties of the palladium-indium alloy according to Experimental Example I.
- the specimen of Table 1 is made by melting the alloy components and injecting it into the graphite mold to form a cast, and then using a rolling mill to increase the cast and then stamp and cut it.
- the melting temperature of the metal alloy for pottery parts should be at least 920 ° C., so the indium content can be limited to less than 40% by weight.
- the content of indium may be at least 6% by weight or more, especially in order to deepen the yellow can be maintained at 12% by weight or more. From these results, the content of indium in the following experimental examples was added in the range of 12 to 40% by weight.
- Table 2 shows the alloy composition (wt%) and physical properties according to Experimental Example II of the present invention.
- Experimental Examples II-1 to II-4 it can be seen that as the silicon (Si) is added, the thermal expansion coefficient of the metal alloy is greatly reduced. As silicon increased, the silver decreased relatively.
- Experimental Example II-1 may be used for low temperature firing, and Experimental Example II-2 may be used for high temperature firing.
- Experimental Examples II-3 and II-4 may not be suitable as ceramics for ceramic parts because the coefficient of thermal expansion is too low in the absence of additional alloying elements. Based on this, the content of silicon can be limited primarily to less than 1% by weight. However, the content of silicon may be further increased by adding other alloying elements.
- Experimental Examples II-5 to II-8 it can be seen that the coefficient of thermal expansion of the metal alloy decreases as germanium (Ge) is added. However, it can be seen that the degree of reduction of the thermal expansion coefficient is relatively lower in the case where germanium is added as compared to silicon. Experimental Examples II-5 and II-6 may be used for low temperature firing, and Experimental Example II-7 may be used for high temperature firing. Experimental Example II-8 may not be suitable as an alloy for ceramic parts because the coefficient of thermal expansion is too low in the absence of additional alloying elements. On this basis, the content of germanium may be limited primarily to less than 2% by weight, such as 1% by weight or less. However, the germanium content can be further increased by adding another alloying element.
- Experimental Examples II-9 to II-12 it can be seen that the thermal expansion coefficient of the metal alloy decreases as zirconium (Zr) is added. However, it can be seen that the decrease in the thermal expansion coefficient is slightly lower when zirconium is added as compared to germanium.
- Experimental Examples II-9 to II-11 may be used for low temperature firing, and Experimental Example II-12 may be used for high temperature firing. Based on this, it can be seen that the content of zirconium can be tolerated to a range of approximately 2% by weight or slightly above. Furthermore, the zirconium content may be added in excess of 1% by weight for high temperature firing. However, this content may be changed by adding other alloying elements.
- Table 3 shows the composition (% by weight) of the metal alloy according to Experimental Example III according to the present invention.
- the specimens of Table 3 are made by melting the alloy components and injecting them into the graphite mold to form a cast, and then using a rolling mill to increase the cast and then stamp and cut it. Dissolution of the alloying components can be carried out using a suitable reactor, such as an induction furnace, and can be carried out while injecting a vacuum atmosphere, an inert gas, for oxidation prevention. For example, the pressure in the reactor is pumped at 10 ⁇ 4 to 10 ⁇ 3 torr, in which gas such as argon or nitrogen may be injected.
- the metal alloy for ceramic parts according to Experimental Examples III-1 to III-17 may be composed of some or all of the first to eighth group elements.
- platinum may be further added as the first group element in addition to the gold shown above.
- tin (Sn), selenium (Se), carbon (C), antimony (Sb), or copper (Cu) may be added in a similar function, in addition to the elements listed above as the fifth group element.
- vanadium (V) or tungsten (W) may be added in a similar function in addition to the above-mentioned elements.
- rhenium (Re), rhodium (Rh), lanthanum (La), osmium (Os) or bismuth (Bi) may be added for similar functions.
- the first additional element is selected from the sixth group element
- the second additional element is selected from the seventh group element
- the third additional element is selected from the fifth group element
- the fourth additional element May be selected from the eighth group element.
- Table 4 shows the mechanical / physical properties for the experimental examples of Table 3. These results were obtained by dissolving the alloy prepared according to the experimental examples of Table 3 using an electric furnace or an oxygen-propane gas torch used in the laboratory, and then testing it according to the ISO9693 standard.
- the colors of the alloy in Experimental Examples III-1 to III-17 were all yellow.
- the melting temperature of the alloy is in the range of 945 to 1047 ° C and its coefficient of thermal expansion is in the range of 12.1 to 17.2 10 -6 K -1 , these alloys showed a range suitable for low temperature or high temperature firing.
- the content of palladium (Pd) was exemplarily added 39 to 45% by weight. However, the content of palladium may be increased when the content of gold (Au) and silver (Ag) is reduced.
- the content of gold (Au) is in the range of about 2 to 20% by weight, and the content of silver (Ag) may be about 13 to 31% by weight.
- the physical and mechanical properties of the alloy were suitable for dental dental burs.
- the content of gold and silver can be further extended, as described above.
- the melting temperature and the coefficient of thermal expansion of the alloy depend primarily on the content of indium (In). This primary effect of indium can be weakened or enhanced by other alloying elements. In the case of an alloy for low temperature sintering ceramic parts, the melting temperature is required to be relatively low even if the coefficient of thermal expansion is relatively large. On the other hand, in the case of an alloy for high temperature firing ceramic parts, it is required that the coefficient of thermal expansion be relatively low even if the melting temperature is relatively high.
- the low-temperature baking alloy may have a melting temperature in the range of 920 to 1040 ° C., and a thermal expansion coefficient of 15.5 ⁇ 10 ⁇ 6 to 17.5 ⁇ 10 ⁇ 6 K ⁇ 1 .
- the alloys according to Experimental Examples III-1 to III-9 can be used for low temperature firing.
- the content of indium may be about 20.3 to 30.0% by weight, specifically 20.5 to 29.5% by weight.
- the content of indium may be about 23.0 to 30.0 wt%, as in Experimental Examples III-6 to III-9. Further, when the melting temperature is limited to 1000 ° C. or lower and the thermal expansion coefficient is strictly limited in the range of 16.0 ⁇ 10 ⁇ 6 to 17.2 ⁇ 10 ⁇ 6 K ⁇ 1 , Experimental Examples III-6, III-7 and III-9 As such, the content of indium may be about 24 to 30% by weight.
- Experimental Examples III-8 and III-9 further contain Group 7 elements (second addition elements) as compared to Experimental Examples III-1 to III-7, and thus Experimental Example III-1 even though the indium content is relatively low. It can be seen that the melting temperature is relatively low compared to ⁇ III-7. In this regard, it can be seen that the seventh group element contributes to lowering the melting temperature of the alloy while widening the content range of indium in the low-temperature baking alloy.
- the alloy for high temperature firing has a melting temperature in the range of 1030 to 1200 ° C and a narrow range of 1030 to 1050 ° C, and a thermal expansion coefficient of 12.0 x 10 -6 to 16.0 x 10 -6 K -1 and narrowly. It may range from 13.0 x 10 -6 to 15.5 x 10 -6 K -1 , even more narrowly from 13.9 x 10 -6 to 15.5 x 10 -6 K -1 .
- the alloys according to Experimental Examples III-10 to III-17 can be used for high temperature firing in wide view, in which case the content of indium may be about 12.0 to 26% by weight.
- the content of indium can be enlarged by increasing other additive elements such as gold, platinum or the seventh group element (second additive element).
- Gold, silver or platinum can contribute to raising the melting temperature of the alloy.
- the seventh group element can contribute to reducing the alloy deformation with decreasing melting temperature of the alloy and increasing indium.
- the third addition element (the fifth group element) was added in an amount of 10% by weight or less, specifically 7% by weight or less, in consideration of the strength of the alloy, the corrosion protection properties, and the like.
- the fourth additional element (group 8 element) was added in an amount of 2% by weight or less, in particular 0.5% by weight or less, in consideration of the degree of grain refinement of the alloy.
- LD 50 was found to be 8 g / kg high biosafety.
- Rat fibroblast L-929 cells were inoculated in Eagle MEM medium (10% FBS) at a concentration of 510 5 per mL and incubated at 37 ° C. for 24 hours. After incubation, the liquid component of the culture dish was aspirated to remove 1.0% w / v of agar into the Eagle culture medium, and layered about 12 mL each in a culture dish. 3 mL of 0.02% w / v neutral red phosphate buffered saline injection was added to the agar plate, and then incubated at 37 ° C. for 2 to 3 hours using a 5% carbon dioxide gas apparatus. After incubation, excess dye solution was removed and incubated at 37 ° C.
- Eagle MEM medium 10% FBS
- Table 5 shows the composition (wt%) and physical properties of the metal alloy according to Experimental Example IV according to the present invention.
- the first additional element may be selected from the sixth group element
- the second additional element may be selected from the seventh group element
- the third additional element may be selected from the fifth group element
- Experimental Example IV-1 having an indium content of about 21% and a fifth group element added thereto may be used for low temperature firing.
- Experimental Example IV-1 has a weaker yellow expression compared to Experimental Example IV-2, which is understood because of its relatively low indium content.
- Experimental Example IV-2 if only the indium content is increased, the thermal expansion rate rapidly increases, and low-temperature firing becomes impossible.
- Experimental Examples IV-5 to IV-19 having an indium content of less than 30 wt% and a silicon content of at least 0.5 wt% in the sixth group element (first addition element) may be used for high temperature firing.
- the metal alloys of these experimental examples used for high temperature firing may be suitable for ceramic parts.
- Dental metal alloys according to the experimental examples described above may be used as a dental prosthesis in combination with ceramic ceramic materials.
- the above-mentioned dental metal alloy can increase the bonding strength with the ceramic ceramic through proper pretreatment when bonding with the ceramic ceramic.
- an excessive oxide film may be interposed to prevent the ceramic ceramic material from bonding the metal alloy.
- indium in the metal alloy may be oxidized at high temperature firing.
- the metal alloy prior to high temperature firing, may be pretreated to remove metal oxides from the surface of the metal alloy, thereby preventing excessive oxide formation between the ceramic ceramic material and the metal alloy, thereby improving chemical bonding between the two.
- pretreatment may include a wet etch to remove metal oxides.
- wet etching can be performed using aqueous solutions of hydrofluoric acid and nitric acid. The etching time may be appropriately selected in the range of several tens of minutes depending on the content of the metal oxide in the metal alloy.
- FIG. 1 is a photograph showing a dental prosthesis produced by firing without pretreatment according to a comparative example.
- Figure 2 is a photograph showing a dental prosthesis prepared by firing after the pretreatment according to the experimental example.
- the metal alloy was cast in the shape of a tooth, and the ceramic material and the firing temperature may range from about 900 to 980 ° C.
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Abstract
Description
| 실험예I | 합금 원소(중량%) | 물리적 특성 | |||||
| Pd | Au | Ag | In | 열팽창계수(10-6K-1) | 용융 온도(℃) | 색상 | |
| 1 | 50 | 50 | 18.41 | 803 | 황색 | ||
| 2 | 55 | 45 | 17.75 | 867 | 황색 | ||
| 3 | 60 | 40 | 17.20 | 932 | 황색 | ||
| 4 | 62 | 38 | 16.82 | 958 | 황색 | ||
| 5 | 64 | 36 | 16.44 | 984 | 황색 | ||
| 6 | 66 | 34 | 16.06 | 1010 | 황색 | ||
| 7 | 68 | 32 | 15.68 | 1036 | 황색 | ||
| 8 | 70 | 30 | 15.36 | 1062 | 황색 | ||
| 9 | 35 | 3 | 35 | 27 | 18.02 | 918 | 황색 |
| 10 | 39 | 6 | 35 | 20 | 17.17 | 998 | 황색 |
| 11 | 41 | 9 | 35 | 15 | 16.58 | 1051 | 황색 |
| 12 | 41 | 12 | 35 | 12 | 16.26 | 1079 | 황색 |
| 13 | 41 | 15 | 35 | 9 | 15.93 | 1107 | 옅은 황색 |
| 14 | 39 | 20 | 35 | 6 | 15.65 | 1127 | 옅은 황색 |
| 실험예II | 합금 원소 | 물리적 특성 | ||||||||
| Au | Pd | Ag | Zn | In | Si | Ge | Zr | Co | 열팽창계수(10-6K-1) | |
| 1 | 10 | 45 | 17.5 | 0.5 | 27 | 0 | 16.96 | |||
| 2 | 10 | 45 | 17 | 0.5 | 27 | 0.5 | 14.90 | |||
| 3 | 10 | 45 | 16.5 | 0.5 | 27 | 1 | 12.94 | |||
| 4 | 10 | 45 | 15.5 | 0.5 | 27 | 2 | 8.80 | |||
| 5 | 10 | 45 | 17.5 | 0.5 | 27 | 0 | 16.96 | |||
| 6 | 10 | 45 | 17 | 0.5 | 27 | 0.5 | 16.04 | |||
| 7 | 10 | 45 | 16.5 | 0.5 | 27 | 1 | 15.13 | |||
| 8 | 10 | 45 | 15.5 | 0.5 | 27 | 2 | 13.19 | |||
| 9 | 10 | 45 | 17.5 | 0.5 | 27 | 0 | 16.96 | |||
| 10 | 10 | 45 | 17 | 0.5 | 27 | 0.5 | 16.41 | |||
| 11 | 10 | 45 | 16.5 | 0.5 | 27 | 1 | 15.66 | |||
| 12 | 10 | 45 | 15.5 | 0.5 | 27 | 2 | 14.36 | |||
| 13 | 10 | 45 | 17.5 | 0.5 | 27 | 2.5 | 16.81 | |||
| 14 | 10 | 45 | 17 | 0.5 | 27 | 0.5 | 2.5 | 14.81 | ||
| 15 | 10 | 45 | 16.5 | 0.5 | 27 | 1 | 2.5 | 14.96 | ||
| 16 | 10 | 45 | 15.5 | 0.5 | 27 | 2 | 2.5 | 14.31 | ||
| 실험예III | 물리적 특성 | ||
| 열팽창계수(10-6K-1) | 용융 온도(℃) | 색상 | |
| 1 | 17.2 | 1013 | 황색 |
| 2 | 16.3 | 1021 | 황색 |
| 3 | 16.5 | 1026 | 황색 |
| 4 | 16.2 | 1030 | 황색 |
| 5 | 15.9 | 1035 | 황색 |
| 6 | 16.4 | 950 | 황색 |
| 7 | 16.8 | 945 | 황색 |
| 8 | 15.6 | 965 | 황색 |
| 9 | 16.2 | 951 | 황색 |
| 10 | 15.8 | 1037 | 황색 |
| 11 | 14.7 | 1037 | 황색 |
| 12 | 14.1 | 1033 | 황색 |
| 13 | 15.2 | 1047 | 황색 |
| 14 | 13.5 | 1129 | 황색 |
| 15 | 14.2 | 1124 | 황색 |
| 16 | 12.1 | 1140 | 황색 |
| 17 | 13.1 | 1098 | 황색 |
Claims (20)
- 0 초과 35 중량% 이하의 금(Au);5 내지 35 중량%의 은(Ag);6 내지 40 중량%의 인듐(In);30 내지 70 중량%의 팔라듐(Pd); 및합계 0 초과 5.0 중량% 이하이고, 붕소(B), 게르마늄(Ge), 지르코늄(Zr), 실리콘(Si) 및 철(Fe)로 이루어진 군에서 선택된 적어도 하나의 원소를 포함하는, 치과 도재소부용 금속 합금.
- 제 1 항에 있어서, 상기 인듐(In)의 함량은 12.0 내지 35 중량%인, 치과 도재소부용 금속 합금.
- 제 1 항에 있어서, 합계 0 초과 10.0 중량% 이하이고, 아연(Zn), 주석(Sn), 갈륨(Ga), 셀레늄(Se), 탄소(C), 안티몬(Sb) 및 구리(Cu)로 이루어진 군에서 선택된 적어도 하나의 원소를 더 포함하는, 치과 도재소부용 금속 합금.
- 제 1 항에 있어서, 합계 0 초과 2 중량% 이하이고, 이리듐(Ir), 레늄(Re), 로듐(Rh), 루테늄(Ru), 란탄(La), 오스뮴(Os) 및 비스무스(Bi)로 이루어진 군에서 선택된 적어도 하나의 원소를 더 포함하는, 치과 도재소부용 금속 합금.
- 제 1 항에 있어서, 합계 0 초과 10.0 중량% 이하이고, 크롬(Cr), 니오븀(Nb), 마그네슘(Mg), 티타늄(Ti), 코발트(Co), 알루미늄(Al), 바나듐(V), 탄탈륨(Ta), 몰리브덴(Mo) 및 텅스텐(W)으로 이루어진 군에서 선택된 적어도 하나의 원소를 더 포함하는, 치과 도재소부용 금속 합금.
- 제 1 항에 있어서, 상기 인듐(In)의 함량은 12.0 내지 26.0 중량%이고,그 열팽창계수가 13.0 X 10-6내지 16.0 X 10-6 K-1인, 치과 도재소부용 금속 합금.
- 제 1 항에 있어서, 상기 인듐(In)의 함량은 20.3 내지 30.0 중량%이고,그 열팽창계수가 15.5 X 10-6내지 17.5 X 10-6 K-1 치과 도재소부용 금속 합금.
- 제 1 항에 있어서, 상기 금(Au)의 함량은 2 내지 20 중량% 이하이고,상기 은(Ag)의 함량은 13 내지 31 중량%인, 치과 도재소부용 금속 합금.
- 0 초과 35 중량% 이하의 금(Au);5 내지 35 중량%의 은(Ag);12.0 내지 35.0 중량%의 인듐(In);합계 0 초과 10.0 중량% 이하이고, 아연(Zn), 주석(Sn), 갈륨(Ga), 셀레늄(Se), 탄소(C), 안티몬(Sb) 및 구리(Cu)로 이루어진 군에서 선택된 적어도 하나의 원소;합계 0 초과 10.0 중량% 이하이고, 붕소(B), 게르마늄(Ge), 지르코늄(Zr), 실리콘(Si) 및 철(Fe)로 이루어진 군에서 선택된 적어도 하나의 원소;합계 0 초과 10.0 중량% 이하이고, 크롬(Cr), 니오븀(Nb), 마그네슘(Mg), 티타늄(Ti), 코발트(Co), 알루미늄(Al), 바나듐(V), 탄탈륨(Ta), 몰리브덴(Mo) 및 텅스텐(W)으로 이루어진 군에서 선택된 적어도 하나의 원소;합계 0 초과 2 중량% 이하이고, 이리듐(Ir), 레늄(Re), 로듐(Rh), 루테늄(Ru), 란탄(La), 오스뮴(Os) 및 비스무스(Bi)로 이루어진 군에서 선택된 적어도 하나의 원소; 및잔부의 팔라듐(Pd) 및 불가피 분순물로 이루어진, 치과 도재소부용 금속 합금.
- 제 9 항에 있어서, 상기 인듐(In)의 함량은 12.0 내지 26.0 중량%이고,그 용융 온도가 1030 내지 1200℃인, 치과 도재소부용 금속 합금.
- 제 9 항에 있어서, 상기 인듐(In)의 함량은 20.3 내지 30.0 중량%이고,그 용융 온도가 920 내지 1040℃인, 치과 도재소부용 금속 합금.
- 0 초과 85 중량% 이하의 금(Au);0 초과 35 중량% 이하의 은(Ag);6 내지 40 중량%의 인듐(In);5 내지 70 중량%의 팔라듐(Pd); 및합계 0 초과 5.0 중량% 이하이고, 붕소(B), 게르마늄(Ge), 지르코늄(Zr), 실리콘(Si) 및 철(Fe)로 이루어진 군에서 선택된 적어도 하나의 제 1 원소; 및합계 0 초과 10.0 중량% 이하이고, 크롬(Cr), 니오븀(Nb), 마그네슘(Mg), 티타늄(Ti), 코발트(Co), 알루미늄(Al), 바나듐(V), 탄탈륨(Ta), 몰리브덴(Mo) 및 텅스텐(W)으로 이루어진 군에서 선택된 적어도 하나의 제 2 원소를 포함하는, 치과 도재소부용 금속 합금.
- 제 12 항에 있어서, 상기 적어도 하나의 제 1 원소는 0 초과 내지 1.0 중량% 미만의 실리콘(Si)을 포함하는, 치과 도재소부용 금속 합금.
- 제 12 항에 있어서, 상기 적어도 하나의 제 2 원소는 0 내지 5.0 중량% 범위의 코발트(Co)를 포함하고, 상기 금속 합금과 세라믹 도재의 소성 온도는 900 내지 980℃ 범위를 갖는, 치과 도재소부용 금속 합금.
- 제 12 항에 있어서, 상기 적어도 하나의 제 1 원소는 0 초과 내지 1.0 중량% 미만의 실리콘(Si)을 포함하고, 상기 적어도 하나의 제 2 원소는 0 내지 5.0 중량% 범위의 코발트(Co)를 포함하는, 치과 도재소부용 금속 합금.
- 제 13 항에 있어서, 합계 0 초과 10.0 중량% 이하이고, 아연(Zn), 주석(Sn), 갈륨(Ga), 셀레늄(Se), 탄소(C), 안티몬(Sb) 및 구리(Cu)로 이루어진 군에서 선택된 적어도 하나의 제 3 원소를 더 포함하는, 치과 도재소부용 금속 합금.
- 제 16 항에 있어서, 상기 적어도 하나의 제 1 원소는 0 초과 내지 1.0 중량% 미만의 실리콘(Si)을 포함하고, 상기 적어도 하나의 제 2 원소는 0 내지 5.0 중량% 범위의 코발트(Co)를 포함하는, 상기 적어도 하나의 제 3 원소는 0 초과 내지 5.0 중량% 이하의 구리(Cu)를 포함하는, 치과 도재소부용 금속 합금.
- 제 1 항 내지 제 17 항의 어느 한 항에 따른 치과 도재소부용 금속 합금을 이용하여 제조된 치과 보철물.
- 제 1 항 내지 제 17 항의 어느 한 항에 따른 치과 도재 소부용 금속 합금을 제공하는 단계;상기 금속 합금을 전처리하여 표면의 금속 산화물을 제거하는 단계; 및상기 금속 합금 상에 세라믹 도재를 900 내지 980℃ 범위의 소성 온도 범위에서 접합하는 단계를 포함하는 치과 보철물의 제조방법.
- 제 19 항에 있어서, 상기 금속 산화물을 제거하는 단계에서 전처리는 질산 및 불산의 수용액에서 습식 에칭법으로 진행하는, 치과 보철물의 제조방법.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011800353205A CN103002858A (zh) | 2010-05-27 | 2011-05-26 | 牙瓷料熔附用金属合金和牙假体 |
| EP11786922.2A EP2578202A2 (en) | 2010-05-27 | 2011-05-26 | Metal alloy for fusion of dental ceramics, and dental prosthesis |
| US13/700,363 US20130071285A1 (en) | 2010-05-27 | 2011-05-26 | Metal alloy for fusion of dental ceramics, and dental prosthesis |
| JP2013512544A JP2013533377A (ja) | 2010-05-27 | 2011-05-26 | 歯科陶材焼付用金属合金及び歯科補綴物 |
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| KR1020100049599A KR101191987B1 (ko) | 2010-05-27 | 2010-05-27 | 치과 도재소부용 금속 합금 및 치과 보철물 |
| KR10-2010-0049599 | 2010-05-27 | ||
| KR1020100117307A KR101254289B1 (ko) | 2010-11-24 | 2010-11-24 | 치과 도재소부용 금속 합금 및 치과 보철물 |
| KR10-2010-0117307 | 2010-11-24 |
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| WO2011149290A2 true WO2011149290A2 (ko) | 2011-12-01 |
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| US (1) | US20130071285A1 (ko) |
| EP (1) | EP2578202A2 (ko) |
| JP (1) | JP2013533377A (ko) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2481095C1 (ru) * | 2012-04-04 | 2013-05-10 | Открытое акционерное общество "Научно-производственный комплекс "Суперметалл" имени Е.И. Рытвина" | Сплав на основе палладия для изготовления зубных протезов |
| US20150197834A1 (en) * | 2012-09-28 | 2015-07-16 | Takuriki Honten Co., Ltd. | Ag-Pd-Cu-Co ALLOY FOR USES IN ELECTRICAL/ELECTRONIC DEVICES |
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| CN103205594B (zh) * | 2013-05-07 | 2015-06-17 | 四川奇和贵金属有限公司 | 牙科用钯银合金材料 |
| EP3070182B1 (fr) * | 2015-03-17 | 2017-08-30 | The Swatch Group Research and Development Ltd. | Alliage d'or gris |
| CN104962773A (zh) * | 2015-06-02 | 2015-10-07 | 张亚南 | 一种用于齿科修复的铸造合金及其应用 |
| CH714785B1 (it) | 2018-03-15 | 2022-05-13 | Argor Heraeus Sa | Lega d'oro resistente alla decolorazione e metodo di produzione della medesima. |
| EP3783124B1 (fr) | 2019-08-23 | 2024-08-07 | Omega SA | Piece d'horlogerie, de bijouterie ou de joaillerie en or |
| CN115896527B (zh) * | 2022-12-16 | 2024-05-03 | 深圳市华悦珠宝科技有限公司 | 一种16k金、弹簧的制作方法、弹簧及首饰 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2481095C1 (ru) * | 2012-04-04 | 2013-05-10 | Открытое акционерное общество "Научно-производственный комплекс "Суперметалл" имени Е.И. Рытвина" | Сплав на основе палладия для изготовления зубных протезов |
| US20150197834A1 (en) * | 2012-09-28 | 2015-07-16 | Takuriki Honten Co., Ltd. | Ag-Pd-Cu-Co ALLOY FOR USES IN ELECTRICAL/ELECTRONIC DEVICES |
Also Published As
| Publication number | Publication date |
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| JP2013533377A (ja) | 2013-08-22 |
| WO2011149290A3 (ko) | 2012-05-03 |
| US20130071285A1 (en) | 2013-03-21 |
| EP2578202A2 (en) | 2013-04-10 |
| CN103002858A (zh) | 2013-03-27 |
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