Dental polishing cup for use with a rotary dental hand piece

Details Dental polishing cup for use with a rotary dental hand piece Dental polishing cup for use with a rotary dental hand piece

1979-07-30

1981-03-31

Peshock, Robert

Dentistry

Apparatus

Tool bit

A61C 306

Patent

active

042590710

ABSTRACT:
A dental polishing cup for use with a rotary dental hand piece. The cup has a truncated conical shaped body member with a similar truncated conical shaped cavity in the large open end thereof, the opposite smaller end of the cup being attachable to the rotary hand piece. The inside wall of the cavity is provided with spiral ridges or grooves, the direction of the spiral being such that when the cup containing polishing compound is pressed against the teeth and rotated, the spirals will tend to force the compound inwardly toward the center of the cup.

REFERENCES:
patent: 441524 (1890-11-01), Whitcomb
patent: 2738528 (1956-03-01), Fridge, Sr.
patent: 3621577 (1971-11-01), Spinello

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