Process for producing dental prostheses

Details Process for producing dental prostheses Process for producing dental prostheses

1996-03-04

1997-12-30

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Dental shaping type

264 19, 264 401, 264648, 264651, A61C 1300, A61C 1308

Patent

active

057026505

ABSTRACT:
A process for producing ceramic dental prostheses, with which ceramic dental prostheses may be produced in the same diversity of shapes and with the same accuracy as metal dental prostheses. The process includes shaping an unfinished piece made out of 92.1 to 93.5 wt. % zirconium oxide, 4.5 to 5.5 wt. % yttrium oxide, 1.8 to 2.2 wt. % hafnium oxide, and reworking the piece to form a dental prosthesis by means of a rotating tool made of metal-bonded diamond grains.

REFERENCES:
patent: 5121660 (1992-06-01), Kramer
patent: 5192472 (1993-03-01), Andersson

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