Management of Fractured Endodontic Instruments by Theodor Lambrianidis

Author:Theodor Lambrianidis
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Under direct microscopic vision, a staging platform is prepared at the most coronal aspect of the fragment using modified pre-selected Gates Glidden burs sizes #1–#3.

A trepan bur operated with an endodontic motor in a counterclockwise direction (it) is used to expose the coronal 1 to 1.5 mm length of the fragment.

The fragment might become loose and retrieved just by exposing it with the trepan bur. If it is retrieved, the needle cannula is used. The needle cannula, with dimensions corresponding to the trepan bur used, is inserted into the canal and placed over the exposed portion of the fragment. By pushing the sliding push bottom on the handle, the fragment is gripped and locked in the needle cannula with an insert wedge. The curved and beveled surface at the end of the insert wedge set opposite to the side oval window in the needle cannula improves the engagement and thus ensures firm grip. Once the fragment is grasped mechanically, the whole assembly is retrieved from the canal.

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