Contoured dental posts

Details Contoured dental posts Contoured dental posts

1986-09-08

1988-03-08

Peshock, Robert

Dentistry

Method or material for testing, treating, restoring, or...

Crown

A61C 508

Patent

active

047297360

ABSTRACT:
A dental post for securely retaining a dental restoration on a prepared tooth stub. The dental post is formed of an elongated cylindrical pin having a longitudinal axis. Helical grooves are provided about the periphery of the pin for retaining the pin secured within a cement prepared bore within the tooth stub. An outer contour is formed along the longitudinal length of the pin to define annular retaining ledges axially spaced apart along the pin interspersed with inwardly tapered pin sections. The ledges serve to aid in the retention of the pin in the bore and increase the strength of the pin reducing the possibility of pin shear.

REFERENCES:
patent: 313737 (1885-03-01), How
patent: 4479783 (1984-10-01), Weissman
patent: 4571187 (1986-02-01), Weissman

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