Thermally stabilized casting core

A unitary core having a generally annular base part and a generally tubular mounting part arrayed endwise with a common passage through them, said passage terminating through said base in a socket for matingly engaging another article so as to attach said core to said other article, said socket having a non-round shape transverse to said passage, said core intended to support a body formed on its exterior from molten metal, said base part having a larger external diameter than said mounting part, providing a substantially annular shelf extending radially outward relative to said mounting part in the vicinity of the junction betwen said two parts, and distortion relief means in said base part for minimizing shape distortion of said base part resulting from contact with said molten metal.

In combination, a core and a body cast on the exterior of said core from molten metal, said core having a generally annular shape and a recessed socket at one end for engaging an implant, said core including distortion relief means at said one end for minimizing shape distortion of said socket resulting from contact with said molten metal.

A core of generally annular shape having in one end a recessed socket for engaging another article, said core intended to support a body formed on its exterior from molten metal, said core having a passage through it from one end to the other and including distortion relief means for minimizing shape distortion of said socket resulting from contact with said molten metal.

A generally tube-shaped unitary dental core on which to form an artificial tooth including a metallic substrate formed in place from the molten state on an exterior surface thereof, said core being of generally annular shape having in one end a recessed socket for engaging an implant, and including means for minimizing shape distortion of said socket due to contact with said metal in said molten state.

A generally tube-shaped unitary dental core on which to form an artificial tooth including a metallic substrate formed in place from the molten state on an exterior surface thereof, said core having a passage through it from one end to the other and being of generally annular shape having in one end a recessed socket for engaging another article, and including means for minimizing shape distortion of said socket due to contact with said metal in said molten state.

In combination, a generally tube-shaped unitary dental core on which to form an artificial tooth including a metallic substrate formed in place from the molten state on an exterior surface thereof, said core being of generally annular shape having in one end a recessed socket for engaging another article, and including means for minimizing shape distortion of said socket due to contact with said metal in said molten state, an artificial tooth on said core, a dental implant, and means to affix said core to said implant.