Contoured dental posts

Details Contoured dental posts Contoured dental posts

A - Human Necessities

61

C

83/25

A61C 13/30 (2006.01) A61C 5/00 (2006.01) A61C 5/11 (2006.01)

Patent

CA 1279510

ABSTRACT OF THE DISCLOSURE 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 pre- pared 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 in- crease the strength of the pin reducing the possibility of pin shear.

546241

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