Dentistry – Method or material for testing – treating – restoring – or...
Patent
1992-11-17
1994-08-09
Lieberman, Paul
Dentistry
Method or material for testing, treating, restoring, or...
4332221, 4332281, 106 35, 164 921, 164 97, 419 2, 419 23, A61C 500
Patent
active
053360915
ABSTRACT:
A moldable dental composition for use in forming or repairing dental restorations composed of a mixture of high- and low-fusing temperature metal particles and a volatile binder, composed substantially or entirely of wax, with the binder having a concentration of between thirty (30%) to eighty percent (80%) by volume of the mixture. The average particle size of the high-fusing metal particles are above one micron, and preferably between four microns and eighty microns in size. The composition is heat treated at a temperature to melt the low-fusing temperature metal particles and to eliminate the binder, leaving a porous metal structure with a void volume above thirty percent (30%). The voids are filled using a filler material of metal or ceramic.
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Shoher Itzhak
Whiteman Aharon E.
Einsmann Margaret
Lieberman Paul
Lieberstein E.
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