EFFECTIVENESS OF DIFFERENT ACTIVATED IRRIGATION TECHNIQUE IN REMOVING BIOCERAMIC INTRACANAL MEDICAMENT: A MICRO-CT STUDY

Aim: This study aimed to compare the efficacy of three activated irrigation technique in the removal of bioceramic intracanal medicament from root canals using micro computed tomography (micro-CT). Materials and Methods: Thirty extracted human mandibular premolar teeth were decoronated and instrumented with ProTaper rotary system up to size F3 and filled with Bio C Temp paste. After 1-week incubation period, the intracanal medicament (Bio C Temp) was removed using one of three activation techniques, (n=10) for each: XP-endo Finisher–activated irrigation, Sonic EndoActivator–activated irrigation, or 940-nm diode laser–activated irrigation. Residual medicament volume was calculated three-dimensionally using micro-CT reconstruction and expressed as a percentage of remaining Bio C Temp. Data were statistically analyzed using two-way ANOVA followed by Duncan‘s multiple range test. Results: The activation techniques were not able to completely eradicate (Bio-C Temp) intracanal medicament. The percentage of remaining Bio C Temp was lowest in the XP-Endo Finisher than Sonic EndoActivator and diode laser technique. The apical third showed a significantly higher percentage of remaining Bio C Temp than middle and coronal thirds. Conclusion: The XP‑Endo Finisher technique showed highest removal efficacy than Sonic Endoactivator and diode laser. the XP-endo Finisher, showed superior cleaning efficacy in the apical area.