Citation Information :
Rao SA, Sanam S, Ahmad Z, Soonu C, Muralidhar T. A Cone-beam Computed Tomographic Evaluation of Removing Root Canal Sealer Using a Novel Sonic Agitation Device. J Oper Dent Endod 2019; 4 (2):72-79.
Aim: The aim of this in vitro study was to evaluate the efficacy of canal brush, Waterpik power flosser, and ultrasonic irrigation in removal of a sealer from the root canals using cone-beam computed tomography (CBCT). Materials and methods: Forty-five extracted mandibular premolars were prepared and obturated. The samples were divided into three groups (n = 15). In each group, the sealer was removed using canal brush, Waterpik power flosser, and ultrasonic irrigation. All the samples underwent CBCT imaging. The amount of sealer was evaluated in CBCT sagittal sections and was scored. The maximum concentration of residual sealer was recorded. Statistical analysis: Data were analyzed statistically using the IBM SPSS software version 20.0. Comparison of three groups with the amount of residual sealer was analyzed with the Kruskal–Wallis ANOVA and the Mann–Whitney U test and the level of significance is set at p < 0.05. Results: In comparison among canal brush (mean = 3.7), power flosser (mean = 2.7), and ultrasonic irrigation (mean = 2.3), with p value 0.0001, power flosser showed enhanced efficiency in removing the sealer in apical third when compared to ultrasonic irrigation. The removal of the sealer with power flosser and ultrasonic irrigation in coronal and middle third showed no significant difference. However, in the case of canal brush, there was significant difference in the sealer removal. The efficiency of canal brush is less when compared to power flosser and ultrasonic irrigation in all the thirds. Conclusion: The efficiency of sealer removal is more with both ultrasonic device and power flosser, but enhanced efficiency is seen with power flosser in apical third.
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