1974-12-11
1976-08-03
Peshock, Robert
A61C 306
Patent
active
039721230
ABSTRACT:
Air-abrasive equipment is provided for prophylaxis or tooth cleaning purposes. Provision is made for directing not only the air-abrasive stream or jet but also for directing a stream of warmed water, preferably in the form of a curtain surrounding the air-abrasive stream and serving to enhance the cleaning action and also to entrain the abrasive particles so that they may readily be withdrawn or removed through a liquid suction system.
REFERENCES:
patent: 2290979 (1942-07-01), Luce
patent: 2376287 (1945-05-01), Sorrentino
patent: 2825135 (1958-03-01), Tilden
patent: 3525154 (1970-08-01), Lieb
patent: 3775849 (1973-12-01), Condon
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