Internal ceramic core

Details Internal ceramic core Internal ceramic core

A - Human Necessities

61

C

83/27, 25/99

A61C 13/08 (2006.01) A61C 13/09 (2006.01)

Patent

CA 1129688

ABSTRACT OF THE DISCLOSURE A pontic having a core constructed from a ceramic material embedded in a metal mass at least a portion of which is itself covered by a layer of porcelain. One or more pins are initially inserted into the core for facilitating placement of the core subsequent to waxing of same into a pattern in the cavity of a mold while the pattern is invested and the metal mass subsequently cast within the investment. The porcelain covering layer can be added to the casting in a conventional manner once the casting has been removed from the mold and cleaned in an appropriate manner.

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