Comparison of Time Required by D-RaCe, R-Endo and Mtwo Instruments for Retreatment: An in vitro Study
Published: February 1, 2015 | DOI: https://doi.org/10.7860/JCDR/2015/.5596
Akansha Garg, Ajay Nagpal, Shashit Shetty, Sunil Kumar, Kamal Krishan Singh, Amit Garg
1. Post graduate student, Department of Conservative Dentistry & Endodontics, Kanti Devi Dental College and Hospital, Mathura, Uttar Pradesh, India.
2. Reader, Department of Conservative Dentistry & Endodontics, Kanti Devi Dental College and Hospital, Mathura, Uttar Pradesh, India.
3. Professor and Head, Department of Conservative Dentistry & Endodontics, Kanti Devi Dental College and Hospital, Mathura, Uttar Pradesh, India.
4. Assistant Professor, Department of Conservative Dentistry & Endodontics, Kanti Devi Dental College and Hospital, Mathura, Uttar Pradesh, India.
5. Post Graduate Student, Department of Conservative Dentistry & Endodontics, Kanti Devi Dental College and Hospital, Mathura, Uttar Pradesh, India.
6. Post Graduate Student, Department of Conservative Dentistry & Endodontics, Kanti Devi Dental College and Hospital, Mathura, Uttar Pradesh, India.
Correspondence
Dr. Ajay Nagpal,
Reader, Department of Conservative Dentistry & Endodontics, Kanti Devi Dental College and Hospital,
Mathura-Delhi-National Highway #2, P.O. Chhatikara, Mathura, Uttar Pradesh-281006, India.
E-mail: drajayendodontist@gmail.com
Introduction: To evaluate and compare the amount of time required by three rotary NiTi instruments in removing gutta-percha from root canal during retreatment with hand file as control.
Materials and Methods: Eighty human mandibular premolars with single straight root canals were prepared and obturated by cold lateral condensation with gutta-percha and AH Plus sealer. After two weeks, the 80 teeth were divided into one control group and 3 retreatment groups (n = 20 each). Gutta-percha was removed using H-files, the D-RaCe, or the Mtwo or the R-Endo retreatment systems. Retreatment time was calculated using stopwatch.
Results: D-RaCe and Mtwo required significantly less time than R-Endo and hand file. Hand file took maximum time, which was significantly slower than all groups. However, D-RaCe and Mtwo retreatment time was statistically insignificant.
Conclusion: D-RaCe and Mtwo remove gutta-percha faster than R-Endo and Hand files.
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