Artificial tooth crowns

Details Artificial tooth crowns Artificial tooth crowns

1989-12-20

1992-01-14

Swiatek, Robert P.

Dentistry

Prosthodontics

Tooth construction

433218, A61C 1308, A61C 508

Patent

active

050805894

ABSTRACT:
The present invention relates to an artificial tooth crown composed of a prefabricated coping designed for artificial strength densely sintered ceramic material with powder metallurgical methods. The tooth crown is given the final shape by a veneer material attached to the external surface of the coping by e.g., firing or dental porcelain. The tooth crown can be made in less manufacturing time with an increase in the strength and the accuracy to shape.

REFERENCES:
patent: 4321042 (1982-03-01), Scheicher
patent: 4431420 (1984-02-01), Adair
patent: 4451236 (1984-05-01), Tarasov et al.
patent: 4548959 (1985-10-01), Nagai et al.
patent: 4585417 (1986-04-01), Sozio et al.
patent: 4747876 (1988-05-01), Hakamatsuka et al.
patent: 4793809 (1988-12-01), Sigler et al.
patent: 4909738 (1990-03-01), Ai et al.

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