Root canal file

Details Root canal file Root canal file

1975-08-11

1977-06-14

Peshock, Robert

A61C 502

Patent

active

040288102

ABSTRACT:
An endodontic instrument for treating a pulp canal includes a handle portion adjustably mounted in telescoping relation on the shaft of an elongated working tool, with cooperating grooves in the shaft and handle preventing relative movement therebetween during use of the instrument. Means are provided for quickly and accurately adjusting the working length of the tool projecting from the handle and for quickly and reliably interlocking the tool and handle in the desired adjusted relationship with the end of the handle acting as a positive stop limiting the depth of penetration of the working tool portion during use of the instrument.

REFERENCES:
patent: 2016766 (1935-10-01), Blair
patent: 3358826 (1967-12-01), Siegel
patent: 3855705 (1976-12-01), Malmin
patent: 3924334 (1975-12-01), Lentine
Silverman's Dental Catalogue, p. 37, 1976 Edition, Apollo Road, Plymouth Meeting, Pa. 19462.

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