Utrasonic dental file and method of determining failure resistan

Details Utrasonic dental file and method of determining failure resistan Utrasonic dental file and method of determining failure resistan

1983-09-30

1985-05-21

Peshock, Robert

Dentistry

Apparatus

Broach

433166, A61C 502

Patent

active

045183562

ABSTRACT:
An ultrasonic endodontic file that is resistant to failure from fracturing and breaking during operation by having an ideal length, which if increased or decreased by more than 1 mm, will result in increased file breakage.

REFERENCES:
patent: 4190958 (1980-03-01), Martin
patent: 4229168 (1980-10-01), Scholz
patent: 4299571 (1981-11-01), McSpadden
patent: 4330278 (1982-05-01), Martin
patent: 4332561 (1982-06-01), McSpadden
Die Quintessenz, No. 3, Mar. 1973, Berlin; J. M. Laurichesse et al., "Normen von Wurzelkanalinstrumenten", pp. 31-34.

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