Method of forming a porcelain crown

Details Method of forming a porcelain crown Method of forming a porcelain crown

1975-01-02

1976-01-27

Mancene, Louis G.

A61C 508

Patent

active

039343480

ABSTRACT:
A method of forming a porcelain crown that requires no shoulder, and can be fitted over any type of standard impression made by a dentist. In the method, a laboratory plaster model is made from a dentist's impression and includes male and female dies. The male die has successive layers of materials applied thereupon comprising first a 0.002 gauge platinum film followed successively by a first layer of gold crust, a second layer of gold crust and opaque porcelain, upon which a regular porcelain is applied that fits the female die with the regular porcelain receiving thereafter a final application of glazing powder. The crown is baked between each step of the process.

REFERENCES:
patent: 2194790 (1940-03-01), Gluck
patent: 2980998 (1961-04-01), Coleman et al.
patent: 3413723 (1968-12-01), Wagner et al.
patent: 3481772 (1969-12-01), MacNairn et al.
patent: 3761728 (1973-09-01), Kochavi

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