Related Experiment Video
Updated: Jun 21, 2025

03:07
Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses
Published on: October 11, 2024
489
Comparative Evaluation of the Removal of Gutta Percha From the Root Canal Using Various Retreatment File Systems With
Nishitha Arun1, Pradeep Solete1, Ganesh Jeevanandan2
1Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND.
Cureus
|July 12, 2024
Summary
The Neo Endo file system left more gutta-percha (GP) remnants than Solite RS3 and ProTaper Universal Retreatment (PTUR) files. Magnification significantly improved GP removal efficiency for all tested retreatment systems.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Gutta-percha (GP) removal is crucial for endodontic retreatment success.
- Various retreatment file systems exist, each with varying efficacy.
- Magnification aids in visualizing and removing root canal filling materials.
Purpose of the Study:
- To compare the efficacy of three gutta-percha (GP) removal systems: Neo Endo Retreatment file system, Solite RS3, and ProTaper Universal Retreatment (PTUR) files.
- To evaluate the impact of magnification (direct operative microscope) on GP removal efficiency.
- To assess remnant GP under stereomicroscopic evaluation.
Main Methods:
- Sixty single-rooted teeth were obturated and randomly assigned to three retreatment groups (Neo Endo, Solite RS3, PTUR).
- Each group was divided into subgroups with and without 12x magnification using an operative microscope.
- Roots were split, and remnant GP was quantified using stereomicroscopy and image analysis software.
Main Results:
- The Neo Endo system showed significantly more residual GP compared to Solite RS3 and PTUR, irrespective of magnification.
- Without magnification, Solite RS3 was more effective than PTUR.
- With magnification, Solite RS3 and PTUR showed comparable efficacy.
- Retreatment without magnification resulted in more GP remnants than with magnification.
Conclusions:
- The Neo Endo file system was less effective in removing GP compared to Solite RS3 and PTUR.
- Solite RS3 demonstrated comparable efficacy to PTUR, especially with magnification.
- Utilizing magnification significantly enhances the efficiency of gutta-percha removal during endodontic retreatment.

