Process of forming all porcelain dental prosthesis and thermal c

Details Process of forming all porcelain dental prosthesis and thermal c Process of forming all porcelain dental prosthesis and thermal c

1987-06-01

1989-05-30

Wilson, John J.

Dentistry

Apparatus

Having gauge or guide

433213, 433223, 264 19, A61C 1900

Patent

active

048346519

ABSTRACT:
This disclosure is directed to the use of phosphate bonded investment with solid high temperature dowels or pins for the preparation or making of all porcelain dental prosthetic restorations. More specifically, the solid, high temperature pin type dowels, when used in dies and models formed of phosphate bonded investment material for making porcelain restorations, when fired to a temperature range between 1600.degree.-2200.degree. F. functions as a heat sink to effect a more uniform heating and cooling of refractory model and porcelain restoration thereon so that the form and shape of the vitrified porcelain restoration may be more accurately maintained.

REFERENCES:
patent: 3286350 (1966-11-01), Cooper
patent: 3521354 (1970-07-01), Stern et al.
patent: 3931677 (1976-01-01), Tinder
patent: 4001938 (1977-01-01), Cooper
patent: 4139943 (1979-02-01), Dragan
patent: 4585417 (1986-04-01), Sozio et al.
patent: 4591385 (1986-05-01), Pearsall

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