Retrieving Broken Metallic Instruments from Root Canal by Using the Ultrasound System and Endodontic Microscope

During root canal instrumentation several accidents may occur, one of them being the separation of the instrument.The chemical structure of metallic boken instrumenthas an important role in the therapeutic approach. Due to metal fatigue, over instrumentation, incorrect speed, bad technique, and several other reasons, the endodontic instruments, manual or rotative, may break inside the root canal. The broken piece usually gets stuck inside the dentine walls. Several years ago, such accident was equal to the loss of the tooth, but nowadays, with the use of the endodontic microscope and ultrasonic tips, the teeth can be fully restored as the separated instrument can be removed safely.