Method for using endodontic instrument fitted on a vibrating han

Dentistry – Method or material for testing – treating – restoring – or... – Endodontic

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433102, A61C 502

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active

057977470

ABSTRACT:
The invention relates to an endodontic instrument which can be fitted on a vibratory handpiece (1) for the treatment of a tooth canal or the retreatment thereof, wherein it is made up of a rigid proximal portion constituting the sleeve which allows it to be fixed to the vibratory handpiece (1), of a median portion (4) which is also rigid and whose axis forms an angle (x) with the proximal portion, and of a distal portion (5) whose axis at the end forms an angle (y) with the median portion in the direction opposite that of the proximal portion, said distal portion being of a general conical line and of a dimension at the tip permitting its penetration into the canal.

REFERENCES:
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patent: 4889487 (1989-12-01), Lovaas
patent: 4992048 (1991-02-01), Goof
patent: 5094617 (1992-03-01), Carr
patent: 5104316 (1992-04-01), McSpadden
patent: 5110291 (1992-05-01), Randin
patent: 5197880 (1993-03-01), Lovaas
patent: 5320530 (1994-06-01), Fong
patent: 5642998 (1997-07-01), Riitano
"The Endodontic File is a Disposable Instrument", by Reza B Kazemi, DMD, et al., Journal of Endodontics, vol. 21, No. 9, Sep. 1995, pp. 451-455.
"Hardness and Strength of Endodontic Files and Reamers", Peter John Brockhurst, and Ian Denholm, Journal of Endodontics, vol. 22, No. 2, Feb. 1996, pp. 68-70.
"Revision to American National Standards/American Dental Association Specification No. 28* For Root Canal Files and Reamers, Type K", *Approved Jun. 30, 1988, Effective Jun. 1989, ANSI/ADA Specification No. 28--1988, pp. 1-17.

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