The ET25S tip from ACTEON is made of a titanium-niobium alloy, with a 15 mm working length and 4% taper. Its short shape is specifically suited to working in the coronal third of the canal as well as in isthmuses, those narrow communication areas between canals that require precise access during endodontic retreatment.
It works through mechanical vibration to dislodge filling materials, gutta-percha remnants, or obstructions present in these access areas. Used with an ACTEON-compatible ultrasonic generator, as part of canal retreatment protocols.