Apparatus for filling tooth root canals under vacuum

Details Apparatus for filling tooth root canals under vacuum Apparatus for filling tooth root canals under vacuum

1992-10-01

1994-03-22

Wilson, John J.

Dentistry

Apparatus

Having intra-oral dispensing means

433224, A61G 502

Patent

active

052958280

ABSTRACT:
The apparatus comprises a filling nozzle having a conical part so that it can fit in a leaktight manner on to a burred aperture in a tooth to be filled. The nozzle has a suction tube and a first annular channel connected to the suction tube and coming out into the dental cavity in order to create a vacuum therein. A second central channel serves to bring a filling paste from a reservoir to the dental cavity. The cross-section of flow of the first channel is several times smaller than that of the second channel, so that the paste travels much more slowly in the first channel than in the second, under the effect of the partial vacuum in the dental cavity.

REFERENCES:
patent: 4021921 (1977-05-01), Detaille
patent: 4993947 (1991-02-01), Grosrey
Prof. Dr. med. Dr. med. dent. Gustav Korkhaus and Dr. med. dent. Rudolf Alfter: "Die Vakuumwurzelbehandlung" (Vacuum Treatment of Roots), Forschungsberichte des Wirtschafts-und Verkehrsministeriums Nordrhein-Westfalen; Westdeutscher Verlag, Cologne and Opladen, 1958 and translation of pp. 25-29 which related to the description of the apparatus.

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