Abstract
AIM: This in-vitro study aims to evaluate the effectiveness of passive ultrasonic irrigation in endodontic retreatment with and without solvent using a stereomicroscopeMATERIAL AND METHODS: A total of 50 extracted maxillary lateral incisors were obturated with gutta-percha and AH plus sealer. Retreatment was done with or without using solvent and either with syringe irrigation or passive ultrasonic irrigation. The roots were split longitudinally and were observed under a stereomicroscope. All the specimens were evaluated for the presence of residual lling material. The data were analyzed by One way ANOVA followed by Tukey's post hoc was used for intergroup comparison.RESULTS: Passive ultrasonic irrigation subgroup without using Xylene as a solvent group showed better, cleaner canals than with Xylene as a solvent group, and similarly syringe irrigation group without solvent showed better cleaner canals than with Xylene as a solvent group.CONCLUSION: Both ultrasonic and syringe irrigation showed cleaner canals when Xylene was not used. Hence, Xylene should be utilized only when mechanical methods fail to achieve retrieval of Guttapercha in retreatment cases.
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