Endodontics is a specialty of dentistry that focuses on the internal structure of the tooth and the pathologies that can affect the dental pulp, a soft tissue containing nerves and blood vessels. Since the 1990s, mechanized instruments have been used during endodontic treatments (or root canal treatments) for the cleaning and shaping of the root canal system. Continuous, slow and constant rotation, these instruments made of a nickel-titanium alloy are more flexible than instruments used manually. They are activated by a small electric motor and allow a root canal treatment to be performed in less time than with conventional files. They are also equipped with a detector that allows you to locate the tip of the root precisely.