The effect of gutta-percha removal using nickel-titanium rotary instruments.
10.5395/JKACD.2004.29.3.212
- Author:
Jeong Hun JEON
1
;
Jeong Beom MIN
;
Ho Keel HWANG
Author Information
1. Department of Conservative Dentistry, College of Dentistry, Chosun University, Korea. rootcanal@hanmail.net
- Publication Type:Original Article
- Keywords:
Endodontic retreatment;
Gutta-percha removal;
Profile;
ProTaper;
K3
- MeSH:
Dental Instruments;
Dental Pulp Cavity;
Gutta-Percha*;
Hand
- From:Journal of Korean Academy of Conservative Dentistry
2004;29(3):212-218
- CountryRepublic of Korea
- Language:Korean
-
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: 1. In the total time for gutta-percha removal, Profile group was the fastest and followed by K3, Protaper, Hedstrom file group. 2. 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. 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.
