Fabrication method for ceramic core of a dental prosthesis

Details Fabrication method for ceramic core of a dental prosthesis Fabrication method for ceramic core of a dental prosthesis

1997-05-02

1998-07-07

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Dental shaping type

264600, A61C 1600

Patent

active

057763828

ABSTRACT:
An improved method for simplifying a slip casting applied conventional all ceramic core molding process by molding an all ceramic core from a ceramic sheet. In the method, there is prepared a slurry which consists mainly of alumina, spinel, alumina/zirconia powder, by adding thereto a dispersant, a binding agent, a plasticizer, a solvent and the like. The slurry is formed into a sheet having a thickness of 0.1 mm to 1.0 mm for thereby fabricating a tooth molding mass by using a heat hydrostatic pressing at a pressure of 15 Kgf/cm.sup.2 to 150 Kgf/cm.sup.2 at a temperature of 50.degree. C. to 110.degree. C., with slurry composition for fabricating an all ceramic jacket crown applicable to an artificial crown.

REFERENCES:
patent: 4585417 (1986-04-01), Sozio et al.
patent: 4772436 (1988-09-01), Tyszblat
patent: 5346397 (1994-09-01), Braiman
patent: 5453227 (1995-09-01), Rieger

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