Method of making a casting

Details Method of making a casting Method of making a casting

1980-06-27

1981-12-22

Mancene, Gene

Plastic and nonmetallic article shaping or treating: processes

Dental shaping type

Tooth forming

A61C 1308

Patent

active

043070442

ABSTRACT:
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.

REFERENCES:
patent: 448745 (1891-03-01), Wright
patent: 633071 (1899-09-01), Campbell
patent: 2025344 (1935-12-01), Fischer
patent: 3052982 (1962-09-01), Weinstein et al.
patent: 3716418 (1973-02-01), Kochavi
patent: 4059901 (1977-11-01), Spalten
patent: 4229170 (1980-10-01), Perez

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