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http://dx.doi.org/10.5395/JKACD.2004.29.3.212

THE EFFECT OF GUTTA-PERCHA REMOVAL USING NICKEL-TITANIUM ROTARY INSTRUMENTS  

Jeon, Jeong-Hun (Department of Conservative Dentistry, College of Dentistry, Chosun University)
Min, Jeong-Beom (Department of Conservative Dentistry, College of Dentistry, Chosun University)
Hwang, Ho-Keel (Department of Conservative Dentistry, College of Dentistry, Chosun University)
Publication Information
Restorative Dentistry and Endodontics / v.29, no.3, 2004 , pp. 212-218 More about this Journal
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 $K^3$) and a hand instrument(Hedstrom file) used to remove these materials. The results of this study were as follows: 1. In the total time for gutta-percha removal. Profile group was the fastest and followed by $K^3$, Protaper, Hedstrom file group. 2. In case of the evaluation of the volume of remained gutta-percha from radiograph. $K^3$ group got the highest score and followed by Protaper. Hedstrom file. Profile group in the apical 1/3. 3. In case of the evaluation of the volume of gutta-percha remained from stereomicroscope, $K^3$ 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 $K^3$ group in the nickel-titanium rotary instrument groups.
Keywords
Endodontic retreatment; Gutta-percha removal; Profile; ProTaper; $K^3$;
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