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Influence of Irrigant Activation Techniques on External Root Temperature Rise and Irrigation Penetration Depth in
Ali Addokhi1, Ahmed Rahoma2, Neveen M A Hanna2
1Endodontic Fellowship Program, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
Dentistry Journal
|July 25, 2025
Summary
Ultrasonic and Sonic irrigation techniques effectively remove biofilm-mimicking hydrogel (BMH) from simulated root canals, showing superior performance compared to Diode Laser and XP-Finisher. While Diode Laser and Ultrasonic methods caused the highest temperature increases, this did not significantly impact cleaning efficacy.
Area of Science:
- Endodontics
- Biomaterials Science
- Dental Technology
Background:
- Root canal therapy success depends on thorough cleaning and disinfection.
- Advanced irrigation activation techniques improve cleaning but may increase temperature.
- Understanding temperature rise and cleaning efficacy of these techniques is crucial.
Purpose of the Study:
- To investigate temperature rise during various irrigation activation techniques.
- To evaluate the efficacy of these techniques in removing biofilm-mimicking hydrogel (BMH).
- To assess irrigant penetration in simulated root canal systems.
Main Methods:
- Compared five irrigation activation techniques: Diode Laser, Ultrasonic, Sonic, XP-Finisher, and Control.
- Measured temperature rise on extracted teeth using a thermographic camera.
- Assessed irrigant penetration and BMH removal in 3D-printed teeth using radiographic visualization.
Main Results:
- Diode Laser and Ultrasonic activation caused the highest temperature rise.
- Ultrasonic and Sonic activation demonstrated significantly greater irrigant penetration and BMH removal.
- Temperature rise did not significantly affect penetration or BMH removal.
Conclusions:
- Ultrasonic and Sonic irrigation techniques are most effective for irrigant penetration and BMH removal.
- Diode Laser activation resulted in the highest temperature increase.
- Temperature rise did not correlate with reduced cleaning efficacy in this study.
