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Original Article
- THE EFFECT OF GUTTA-PERCHA REMOVAL USING NICKEL-TITANIUM ROTARY INSTRUMENTS
- Jeong-Hun Jeon, Jeong-Beom Min, Ho-Keel Hwang
- J Korean Acad Conserv Dent 2004;29(3):212-218. Published online January 14, 2004
- DOI: https://doi.org/10.5395/JKACD.2004.29.3.212
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Abstract
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ePub ABSTRACT The purpose of this study was to quantify the amount of remaining gutta-percha/sealer on the walls of root canals when three types of nickel-titanium rotary instruments(Profile, ProTaper and K3) and a hand instrument(Hedstrom file) used to remove these materials.
The results of this study were as follows:
In the total time for gutta-percha removal, Profile group was the fastest and followed by K3, Protaper, Hedstrom file group.
In case of the evaluation of the volume of remained gutta-percha from radiograph, K3 group got the highest score and followed by Protaper, Hedstrom file, Profile group in the apical 1/3.
In case of the evaluation of the volume of gutta-percha remained from stereomicroscope, K3 group got the highest score and followed by Protaper, Hedstrom file, Profile group in the apical 1/3.
These results showed that instrumentation using nickel-titanium rotary instrument groups was faster than that using hand instrument group. The effect of gutta-percha removal using Profile group was better than that using Protaper and K3 group in the nickel-titanium rotary instrument groups.
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