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Cleaning efficacy using two engine-driven systems versus manual instrumentation in curved root canals: a scanning
Osvaldo Zmener1, Cornelis H Pameijer, Susana Alvarez Serrano
1Postgraduate Program for Specialized Endodontics, Faculty of Medical Sciences, School of Odontology, University of El Salvador/Argentine Dental Association, Buenos Aires, República Argentina.
Journal of Endodontics
|August 18, 2011
Summary
Engine-driven endodontic systems (TiLOS and ProTaper) cleaned curved root canals better than manual methods. Both automated systems demonstrated superior debris removal, though complete cleanliness was not achieved.
Area of Science:
- Endodontics
- Dental materials science
- Biomaterials
Background:
- Root canal cleanliness is crucial for endodontic treatment success.
- Chemomechanical instrumentation aims to remove debris and smear layer from root canals.
- Evaluating novel automated systems against manual techniques is essential.
Purpose of the Study:
- To compare the effectiveness of two engine-driven automated systems (TiLOS and ProTaper) versus manual instrumentation in cleaning curved root canals.
- To assess debris and smear layer removal using a standardized irrigation protocol.
Main Methods:
- Ex vivo study on 30 human mandibular molars with curved root canals.
- Instrumentation using TiLOS (n=10), ProTaper (n=10), or manual files (n=10).
- Standardized irrigation with sodium hypochlorite and EDTA, followed by SEM analysis of debris and smear layer at 1, 5, and 10 mm from working length.
Main Results:
- Both TiLOS and ProTaper systems showed significantly better root canal cleanliness compared to manual instrumentation.
- No significant difference in cleanliness was observed between the TiLOS and ProTaper systems.
- Debris and smear layer scores were lower for automated systems across all measured levels.
Conclusions:
- Engine-driven TiLOS and ProTaper systems, with a standardized irrigation protocol, offer improved root canal wall cleanliness over manual techniques.
- While superior, neither automated system achieved complete removal of debris and smear layer in curved canals.
- These findings support the use of engine-driven systems for enhanced chemomechanical preparation in endodontics.
