Dentistry – Method or material for testing – treating – restoring – or... – Crown
Patent
1984-06-21
1987-04-28
Wilson, John J.
Dentistry
Method or material for testing, treating, restoring, or...
Crown
4332221, 427 2, 106 35, A61C 510
Patent
active
046610715
ABSTRACT:
An alloyed metal dental prosthetic device, such as a coping, of an alloy dental reconstructive element, is formed from a liquid phase sintered powdered metal alloy at elevated temperatures of about 1000.degree.-1300.degree. C. under a high level of vacuum of about 10 to 1000 microns of Hg. A special oven is devised which will achieve this high level of vacuum in a rapid efficient manner. The resultant metal prosthetic device has the density of at least that found in commercial cast prosthetic devices.
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Bell A. Milton
Gamberg Murray G.
Kurzeja Ronald
Denpac Corp.
Wilson John J.
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