Perforation risks associated with the use of Masserann endodontic kit drills in mandibular molars

Removal of Separated Files from Root Canals With a New File-removal System: Case Reports

“…An extractor is then used to retrieve the fragment. The limitation of this system is that it cannot be used in cases involving fragments located in the midroot or apical third of the root or in curved canals because this technique involves the removal of a considerable amount of sound dentin which can weaken the root structure and increase the risk of perforation (19). Another alternative to the Masserann kit is the Endo Safety System (20).…”

A Method for retrieving Endodontic or Atypical Nonendodontic separated Instruments from the Root Canal: A Report of Two Cases

“…13 The success rate of separated instrument removal with these systems is lower (47.6%) than the ultrasonic (95.2%) or than the conventional method (80.9%).…”

Removal of Separated Instruments With Masserann Techniques: Two Case Reports

“…These instruments remove excess dentine, weaken the root, and can predispose to root fracture or perforation. 4,12 In present study, the Masserann technique was employed when attempts to grasp the fragment with a hemostat failed. Despite positioning of the teeth in the posterior and the presence of a moderately curved canal, the Masserann technique was used successfully.…”