Dentistry – Apparatus – Having suction orifice
Patent
1994-07-19
1996-05-07
Lucchesi, Nicholas D.
Dentistry
Apparatus
Having suction orifice
433 93, A61C 1706, A61C 1714
Patent
active
055139868
ABSTRACT:
A dental apparatus includes a tray that is shaped and dimensioned to fit over at least some of the teeth of a patient. The tray defines a tunnel through which to evacuate saliva from the mouth of the patient. The tray includes a connector portion for coupling a suction source to the tunnel, and the tray defines at least a first opening in fluid communication with the tunnel through which saliva may be sucked from the mouth of the patient into the tunnel for communication to the suction source. The apparatus may take the form of a fluoride treatment tray or an impression tray, including a bite registration tray, it may include multiple trays, and it may define additional spaced-apart openings in fluid communication with the tunnel to facilitate evacuation of saliva from a larger region within the mouth of the patient. Preferably, the connector portion is configured to receive an end of a conventional saliva ejector in a close fitting relationship in order to couple a commonly used suction source to the tunnel. In one version, the tray is formed from two layers of transparent material to facilitate viewing of saliva being evacuated through the tunnel. A dental apparatus for isolating a field within the mouth of a patient is also disclosed that includes an integral saliva evacuation tunnel.
REFERENCES:
patent: 2937445 (1960-05-01), Erickson
patent: 3049806 (1962-08-01), Cofresi
patent: 3527218 (1970-09-01), Westine
patent: 3566869 (1971-03-01), Crowson
patent: 3731675 (1973-05-01), Kelly
patent: 4560351 (1985-12-01), Osborne
patent: 4802851 (1989-02-01), Rhoades
patent: 4992046 (1991-02-01), Sharp
patent: 5014315 (1992-04-01), McKinley
patent: 5018967 (1991-05-01), Schwalbach
Product Catalog of American Dental Accessories, Inc., Summer 1993, showing bite registration trays, fluoride gel trays, and impression trays on p. 40 .
Feltham Erika B.
Stewart James P.
Feltham Erika B.
Hanson Loyal M.
Lucchesi Nicholas D.
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