J Korean Acad Conserv Dent.  2004 May;29(3):212-218. 10.5395/JKACD.2004.29.3.212.

The effect of gutta-percha removal using nickel-titanium rotary instruments

• Jeon JH
• Min JB
• Hwang HK

• KMID: 1987096
• DOI: http://doi.org/10.5395/JKACD.2004.29.3.212

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.

Keyword

Endodontic retreatment; Gutta-percha removal; Profile; ProTaper; K3

MeSH Terms

Dental Instruments
Dental Pulp Cavity
Gutta-Percha*
Hand
Gutta-Percha

Figure

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  Figure 1. Mean time for gutta-percha removal

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  Figure 2. The representive image showing score 0

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  Figure 3. The representive image showing score 1

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  Figure 4. The representive image showing score 2

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  Figure 5. The representive image showing score 3

Reference

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