Objective: to evaluate different approaches (ultrasonic troughing, and trephine bur with extractors) to manage separated endodontic instruments. Methods and Materials: A block of wax containing mandibular molars were scanned to get preoperative CBCT to select a total number of 32 mandibular molars that were later divided into two groups (n=16) according to file retrieval procedure: Group (A) (control group): the broken segment was retrieved by ET-25 ultrasonic tips, Group (B): the broken segment was retrieved by micro-extractor (Zumax retrieval kit). Traditional endodontic access cavity was created, orifice opener was used to make coronal third enlargement up to 4mm of the cervical root, glide path is ensured up to file #20/.02, shaping of the canal was made up to file #20.04 and cleaning of the canal was achieved using sodium hypochlorite 5.25% for one minute between each file. A 2nd CBCT was made before file breakage and the sample was mounted at the same place in the wax block. 5mm apical to the canal orifice, the apical 4-mm of a size 25/.04 NiTi instrument with was intentionally fractured in the mesiobuccal canal. A 3rd CBCT was made to confirm the location of the broken instrument in the canal while the sample remained in the same position in the wax block. Staging platform was created using dental microscope, Gates Glidden burs size (1,2,3) and modified Gates Glidden (no.3). The broken segments were subjected to the retrieval procedures assigned for each group and the specimens were scanned to get postoperative CBCT. The 2nd CBCT and the postoperative CBCT were constructed on a (software) to measure canal volume changes, efficiency and practicality of each method.