Dr. Daniel Crossen
Case 1
Patient was referred for RCT #3. Diagnosis: PN/SAP. Access prep completed. Orifice opening completed with ProTaper Universal SX. While scouting for WL, a .10 hand file separated in the MB1 canal. The tip was near the junction with MB2, and the separation occurred near the orifice. Sponge and Cavit placed and new radiograph made. Ultrasonics used to trough around file mostly lingual to the instrument, using the MB2 canal as a guide until the MB2 canal joined the MB1. Doing this, tooth structure palatal to the file was removed and very little tooth structure along the outer edges of the canal system required removal. During this process, about 3mm of the coronal portion of the file broke and was removed. At this point, I switched to the TFRK ultrasonics and continued until 2-3mm of the file was exposed and there was some mobility present. EndoCowboy 0.12mm used to lasso the file. File removed in its entirety without complication. Case completed without further complication. No additional visit necessary. Post-op PA showed minimal loss of tooth structure required for file removal