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Effects of cleaning, disinfection, and sterilization procedures on the cutting efficiency of endodontic files.

Abstract：

:The effects of various cleaning, chemical disinfection, and sterilization procedures on the cutting efficiency of endodontic instruments Unifile (De Trey, Bois Colombes, France), (Flexofile Maillefer, Ballaigues, Switzerland), and H-File (Maillefer)) were investigated. The cross-infection control treatment procedures investigated were as follows: chemical disinfection--NaOCl (2.5%) for 12 and 48 h, and NH4 (5%) for 1 and 4 h; ultrasonic cleaning for 4 and 16 cycles of 15 min; and sterilization methods with chemiclave for 5 and 10 cycles of 20 min, Poupinel for 5 and 10 cycles of 120 min at 180 degrees C and glass beads for 10 and 40 cycles of 40 at 250 degrees C. Cutting efficiency was evaluated as the mass of Plexiglas cut per unit of energy expended by the instrument in microgram/Joule. The cutting efficiency decreased from 1 to 77%, depending on the file design and type of treatment procedures. Heat sterilization (Poupinel) did not modify the cutting efficiency of Unifile and Flexofile. The decrease in cutting efficiency was independent of frequency and duration of treatment procedures.

journal_name

J Endod

journal_title

Journal of endodontics

authors

Haïkel Y,Serfaty R,Bleicher P,Lwin TT,Allemann C

doi

10.1016/S0099-2399(96)80059-8

subject

Has Abstract

pub_date

1996-12-01 00:00:00

pages

657-61

issue

12

eissn

0099-2399

issn

1878-3554

pii

S0099-2399(96)80059-8

journal_volume

22

pub_type

杂志文章

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