Innovative approach to root canal preparation. Simple, and quick root canal preparation, with a minimal number of files. Allows a predictive treatment of the majority of root canals with minimal damage to the tooth structure, and preserving the natural anatomy of the canal. System comprises single use files and contra-angle heads in order to prevent cross-contamination. The gentle action, the easy operation of Gentlefile. Made of layers of wrapped stainless steel wires on a cable core.