http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100329822-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K6-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C30-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C5-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C5-00 |
| filingDate | 1999-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2002-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100329822-B1 |
| titleOfInvention | Dental precious metal alloy for supplement |
| abstract | The present invention is a metal-magnetic dental precious metal alloy used when producing a dental prosthesis (metal-magnetic structure) as an alloy made of a noble metal as a main component.n n n In general, metal has excellent mechanical properties such as tensile strength and compressive strength, but the color of natural teeth cannot be obtained due to the unique color of the metal, and also has the disadvantage of being corroded. Therefore, in order to overcome this drawback, dental prosthetic alloys that combine aesthetics with excellent aesthetics and mechanical properties and precision of metals are used. Such alloys are called metal-magnetic alloys.n n n Dental alloys are used in the oral cavity where various environmental changes such as temperature, acidity, and pressure change occur. First, they must be able to withstand chewing pressure, no abrasion and deformation, and should be similar to the hardness of teeth and It should be similar to the color. In addition, there should be no corrosion or discoloration in the oral cavity and there should be no human hazard.n n n From this point of view, alloys with gold content of 75w% or more, which have a relatively low melting point, excellent castability and no oxidation in the air, are widely used. Low-alloy alloys and non-noble metal alloys have been developed as alloys with similar properties but economical efficiency. However, these alloys have drawbacks such as the occurrence of more discoloration, fracture, cytotoxicity, hardness than tooth hardness as the gold content from the chemical and mechanical results of clinical trials.n n n Therefore, the present invention has increased the price competitiveness by reducing the content of expensive gold and platinum in order to solve the problems of the conventional prosthetic alloy. In addition, it solved the disadvantages of frequent discoloration, fracture, hydrogen embrittlement, casting deterioration, and stronger hardness than tooth hardness due to the addition of a large amount of palladium instead of gold. Indium was added to increase the bond to the porcelain and zinc was added to prevent oxidation in the air and to improve castability.n n n In addition, copper was added to increase hardness and strength, and ductility was increased by adding silver, and iridium and gallium were added to improve particle refinement and castability. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100592523-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102184284-B1 |
| priorityDate | 1999-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.