Removal of dental crowns with wire noose

Details Removal of dental crowns with wire noose Removal of dental crowns with wire noose

1982-09-15

1984-10-02

Peshock, Robert

Dentistry

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

Crown

433161, A61C 300

Patent

active

044745001

ABSTRACT:
A porcelain crown is non-destructively removed by exerting an upward force on a noose about the neck of the crown from a balanced bar-body resting on the tooth by means of a screw threaded through the bar-body. Balancing is achieved by connecting the noose to the bar-body with a plurality of special straps spaced about the crown circumference and passed over pegs on which cylindrical bushings of various diameters may be placed for changing the effective lengths of the straps. Special light-weight tooling is made feasible for tightening the noose about the crown and clamping it in place so that hands are freed to thereby effect a simpler more efficient crown removal process.

REFERENCES:
patent: 3081543 (1963-03-01), Schulstad
patent: 4230454 (1980-10-01), Lococo

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