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Root Canal Cleaning after Different Irrigation Techniques: An Ex Vivo Analysis
Federica Di Spirito1, Massimo Pisano1, Mario Caggiano1
1Department of Medicine, Surgery and Dentistry, Schola Medica Salernitana, University of Salerno, Via S. Allende, 84081 Baronissi, SA, Italy.
Medicina (Kaunas, Lithuania)
|February 25, 2022
Summary
Intracanal heating of sodium hypochlorite (NaOCl) with ultrasonic activation significantly improves root canal cleanliness compared to traditional methods. This enhanced cleaning is crucial for effective endodontic treatment.
Area of Science:
- Endodontics
- Dental Materials Science
- Microbiology
Background:
- The complex three-dimensional anatomy of the root canal system challenges traditional irrigation techniques.
- Incomplete cleaning can compromise endodontic treatment outcomes.
- Novel irrigation activation methods are needed for thorough disinfection.
Purpose of the Study:
- To compare the efficacy of three sodium hypochlorite (NaOCl) irrigation methods in cleaning root canals.
- To evaluate traditionally applied NaOCl, ultrasonically activated NaOCl, and intracanal heated ultrasonically activated NaOCl.
Main Methods:
- An ex vivo study using 60 human mandibular premolars.
- Standardized root canal preparation and assignment to three irrigation groups.
- Microscopic examination of serial cross-sections to assess debris removal.
Main Results:
- Intracanal heated ultrasonically activated NaOCl demonstrated significantly less debris than the other two groups (p < 0.05).
- Ultrasonic activation alone also showed improvement over traditional methods, but less pronounced.
Conclusions:
- Intracanal heating combined with ultrasonic activation represents a superior method for achieving root canal cleanliness.
- This technique offers significant enhancements in debris removal for endodontic procedures.

