Accumulated Hard-tissue Debris Removal Using Different Ultrasonic Power Settings: A Micro-CT Study.
Flávia de Moura Pereira1, Kusai Baroudi2,3, Tarun Walia2
1Division of Endodontics, Department of Odontology, University of Taubaté - UNITAU, Taubaté, SP, Brazil.
European Journal of Dentistry
|August 7, 2025
Summary
Higher power settings (30%) of the Irrisonic Power ultrasonic tip significantly improve the removal of accumulated hard-tissue debris (AHTD) during root canal irrigation. This ultrasonic activation enhances cleaning efficacy compared to lower settings (10%).
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Effective removal of accumulated hard-tissue debris (AHTD) is crucial for successful root canal treatment.
- Ultrasonic irrigation devices have been developed to enhance intracanal cleaning and disinfection.
Purpose of the Study:
- To compare the efficacy of the Irrisonic Power ultrasonic tip at 10% and 30% power settings for removing AHTD from mandibular premolars.
- To evaluate the impact of different ultrasonic power levels on debris removal using micro-computed tomography (micro-CT).
Main Methods:
- Twenty extracted mandibular premolars were analyzed using micro-CT for root canal morphology.
- Specimens were irrigated with sodium hypochlorite and EDTA, with final irrigation using Irrisonic Power at either 10% or 30% power.
- Accumulated hard-tissue debris (AHTD) was quantified pre- and post-irrigation via micro-CT and ImageJ software.
Main Results:
- Both 10% and 30% power settings significantly reduced AHTD.
- The 30% power setting resulted in significantly less residual debris (0.16%) compared to the 10% setting (0.90%).
Conclusions:
- The Irrisonic Power ultrasonic tip at 30% power is more effective for removing AHTD than at 10% power.
- Optimizing ultrasonic power settings can enhance the effectiveness of final irrigation in endodontic procedures.
