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Year : 2016  |  Volume : 8  |  Issue : 7  |  Page : 753-759

Effect of Passive Ultrasonic Irrigation on the Cleanliness of Dentinal Tubules in Non-surgical Endodontic Retreatment with and without Solvent: A Scanning Electron Microscope Study

1 Assistant Professor, Department of Restorative Dental Sciences,
2 Consultant, Endodontics, Chennai, Tamil Nadu, India
3 Professor and Head, Department of Conservative Dentistry and Endodontics, Ragas Dental College, Chennai, Tamil Nadu, India
4 Assistant Professor and Head, Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia
5 Assistant Professor, Department of Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Kingdom of Saudi Arabia

Correspondence Address:
Abhilash Abdul Latheef
Department of Restorative Dental Sciences, College

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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-9626.198611

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Background: To evaluate the effectiveness of passive ultrasonic on the cleanliness of dentinal tubules in curved root canals during endodontic retreatment with and without solvents using scanning electron microscope (SEM). Materials and Methods: A total of 36 extracted maxillary molars were obturated with gutta-percha and AH Plus sealer. Retreatment was done with or without using solvent. Time was also recorded. Passive ultrasonic irrigation was done in one group. The roots were split longitudinally and observed under an SEM at ×2000. All the specimens were evaluated for a total number of dentinal tubules and the number of those either completely or partially filled. The data were analyzed by one-way ANOVA followed by Tukey's post-hoc was used for intergroup comparison. Results: It was observed that more open tubules were present in Group IV followed by Group III, Group II, and Group I, respectively, and this difference was statistically significant (P < 0.05) hence, endodontic retreatment without using any solvent showed more cleanliness of dentinal tubules when compared with the groups using Endosolv-R solvent. However, cleanliness was better in the group where ultrasonic irrigation was done. Conclusion: The use of solvent in this study did not hasten the removal of gutta-percha and AH Plus sealer. Use of passive ultrasonic irrigation after gutta-percha and sealer removal in non-surgical endodontic retreatment enhances the cleanliness of dentinal tubules.

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