Moldable dental material for forming or repairing a dental restoration
OwnerItzhak Shoher, Aharon E. Whitemaninventors
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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, finely divided carbonaceous particles, preferably of activated carbon, and a volatile binder in a concentration, such that upon heat treatment at a temperature below the melting temperature of the high-fusing temperature metal particles but sufficient to melt the low-fusing temperature metal particles and binder, a porous metal structure is formed having a capillary network of voids and a high void volume. The voids are filled using a filler material of metal or ceramic.
Claims8
A moldable dental composition for forming or repairing a dental restoration comprising:
- high fusing temperature metal particles having a melting temperature above the temperature at which said moldable dental composition is selected to be heat treated to form said dental restoration;
- low fusing temperature metal particles in a volume relationship relative to the high fusing temperature metal particles in said composition of between 20% to 80% and having a melting temperature equal to or below said heat treatment temperature;
- carbonaceous particles in a concentration above at least 0.005 wt % of the dental composition and a volatile binder, such that upon heat treatment of the dental composition at said heat treatment temperature, a porous metal structure is formed having a capillary network of voids with a high void volume of between thirty to eighty percent.
Dependencies are inferred from the claim text.