Tornado Effect—Ultimate Apically Extruded Fragment Retrieval Technique

Separation of instruments can occur during routine endodontic treatment in the canal, thereby preventing thorough cleaning and shaping. The success rate of fractured instrument retrieval mainly depends on three factors 1. length of the instrument, 2. inclination of the canal, and 3. size of the fractured instrument. Many advanced techniques and methods can be used to recover the separated instruments but these techniques may not be suitable in all clinical situations one such scenario is extruded fragment (File or GP) beyond the apex where the availability of cutting-edge equipment is needed, this article emphasizes on understanding the various factors that contribute to extruded instrument retrieval and its outcome, on the other hand, also focuses on different instrumental techniques for retrieving extruded files over the apex.