Instrument for the treatment of root canals

Details Instrument for the treatment of root canals Instrument for the treatment of root canals

1992-06-10

1993-08-17

Mancene, Gene

Dentistry

Apparatus

Broach

A61C 502

Patent

active

052363570

ABSTRACT:
A dental instrument has a stem which presents, besides helicoidal ramps providing helicoidal cutting edges, annular grooves of V-shaped cross-section and spaced apart. One of the faces of each of the grooves is perpendicular to the longitudinal axis of the instrument. Due to the grooves, the instrument can be used not only as a reamer, with a rotative movement, but also as a file, with a back and forth movement when the faces of the grooves produce a scraping effect on the wall of the root canal being treated.

REFERENCES:
patent: 1067015 (1913-07-01), Fowler
patent: 1358432 (1920-11-01), Fink
patent: 3863345 (1975-02-01), Malmin
patent: 4205444 (1980-06-01), Weissman
patent: 4457710 (1984-07-01), McSpadden

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