Dentistry – Apparatus – Tool bit
Patent
1988-12-07
1990-05-29
Peshock, Robert
Dentistry
Apparatus
Tool bit
A61C 306
Patent
active
049291807
ABSTRACT:
The present invention is a dental prophylactic polishing cup of unique design and shape having uniquely shaped turbine like vanes or ribs positioned at an angle to the long axis of the prophy cup in such a manner, that as the prophy cup is rotated during a dental prophylaxis the polishing paste held in the cup and brought to bear against the surface of the tooth will be acted on by the said turbine like vanes or ribs forcing the polishing paste back into the cup counteracting the forces that tend to dislodge and throw the paste out of the cup. Thus the polishing paste is held in the cup for a longer period of time and for a greater number of revolutions of the cup for greater efficiency reducing the number of times the prophy cup must be refilled or reloaded, saving time effort and materials, and making the whole procedure less messy. The turbine like vanes or ribs also make the prophy cup easier to load or fill as the vanes draw the paste into the cup as it is rotated against the polishing paste container. This prophy cup can be made in many different shapes with many varieties as to number and size of the vanes and manners used to attach said cup to the prophy-angle.
REFERENCES:
patent: 4259071 (1981-05-01), Warden
Huckert John W.
Peshock Robert
Wymore Max
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