Ultrasonics remains the procedural choice when removing intracanal ob-structions lodged deep within the root canal. On occasion, ultrasonic trephining procedures are limited or prove ineffective. In these instances, the File Removal System, designed by Clifford J. Ruddle, DDS, may be utilized to mechanically engage and potentially remove intracanal obstructions. For more information, call (800) 662-1202 or visit tulsadentalspecialties.com.