Micro-computed tomography assessment of triple antibiotic paste removal using different irrigation methods

Area of Science:

• Endodontics
• Dental Materials Science

Background:

• Triple antibiotic paste (TAP) is widely used as an intracanal medicament in endodontic retreatment.
• Effective removal of TAP is crucial to prevent persistent infection and ensure treatment success.
• Micro-computed tomography (micro-CT) offers a non-destructive method for quantifying intracanal material removal.

Purpose of the Study:

• To compare the efficacy of four different irrigation techniques for removing triple antibiotic paste (TAP) from simulated root canal systems.
• To evaluate the effectiveness of open-ended, side-vented, double side-vented needle irrigation, and the EndoActivator device in TAP removal.

Main Methods:

• Bovine incisor teeth were instrumented and filled with TAP. After 21 days, teeth were irrigated using four distinct methods.
• Triple antibiotic paste (TAP) removal was quantified using micro-computed tomography (micro-CT) by measuring the remaining paste volume.
• Statistical analysis using ANOVA was performed to compare the percentage of TAP removed by each method.

Main Results:

• No statistically significant difference was found in the percentage of triple antibiotic paste (TAP) removed among the four irrigation techniques evaluated.
• All tested irrigation methods demonstrated comparable efficiency in removing the intracanal medicament.

Conclusions:

• The evaluated irrigation techniques exhibit similar efficacy in removing triple antibiotic paste (TAP).
• Complete removal of TAP from the root canal system was not achieved by any of the tested irrigation methods.
• Further research into enhanced irrigation strategies may be necessary for complete intracanal medicament removal.