To evaluate and compare the efficacy, cleaning ability of hand and two rotary systems in root canal retreatment

Abstract

Aim: To evaluate and compare the efficacy, cleaning ability of hand and two rotary systems in root canal retreatment. Methodology: Sixty extracted premolars were retreated with following systems: Group 1-ProTaper Universal retreatment files, Group 2-ProFile system, Group 3-H-file. Specimens were split longitudinally and amount of remaining gutta-percha on the canal walls was assessed using direct visual scoring with the aid of stereomicroscope. Results were statistically analyzed using ANOVA test. Results: Completely clean root canal walls were not achieved with any of the techniques investigated. However, all three systems proved to be effective for gutta-percha removal. Significant difference was found between ProTaper universal retreatment file and H-file, and also between ProFile and H-file. Conclusion: Under the conditions of the present study, ProTaper Universal retreatment files left significantly less guttapercha and sealer than ProFile and H-file. Clinical significance: Rotary systems in combination with gutta-percha solvents can perform superiorly as compared to the time tested traditional hand instrumentation in root canal retreatment.