Retrieval of a separated instrument using Masserann technique

Abstract

The fracture of endodontic instruments is a procedural problem creating a major obstacle to normal routine therapy. The separated instrument, particularly a broken file, leads to metallic obstruction in the root canal and impedes efficient cleaning and shaping. When an attempt to bypass such a fragment becomes difficult, it should be retrieved by mechanical devices. Masserann kit is one such device for orthograde removal of intracanal metallic obstructions. These clinical cases demonstrate the usage of Masserann technique in removal of separated instruments in anterior and also the posterior teeth.

3P’s in retreatment endodontics—An often forgotten virtue

“…[4] Instrument retrieval depends on diameter and cross section of the separated instrument, length of file, curvature of root, dentin thickness and morphology of the root canal, cutting action, length of instrument, location, and area of file binding to canal. [56] However, the best prognosis occurs after complete removal of all obstructions. Different techniques have been described to retrieve the obstruction from canal including the Masserann kit[7] (Micro-Mega, Besancon, France), the Endosicherheits system[8] (Meisinger, Dusseldorf, Germany), the braiding technique,[9] ultrasonics,[10] the combined technique,[11] the wire loop technique,[12] and the endo-extractor technique.…”

Removal of Separated Instruments With Masserann Techniques: Two Case Reports

“…Many orthograde techniques such as grasping with hemostats, a tube and Hedstrom file, wire loops, and devices such as the Masserann Kit, Instrument Removal System (IRS), Endo Extractor, Endo Safety System, and ultrasonics have been described for fragment retrieval. 1,3,5,7,[11][12][13] The Masserann Kit is a useful device for the removal of broken instruments, especially in cases where fragments are in a readily accessible position and tightly wedged. The Masserann Kit is designed for removing metallic objects from straight rooted anterior teeth.…”

“…The Masserann Kit (Micro-Mega, Besancon, France) is a widely used instrument for the removal of separated instruments. 1,[11][12][13] It consist of a series of color coded trepan burs (diameter ranging from 1.1 to 2.4 mm), two size extractors (1.2 and 1.5 mm in outer diameter) and other accessories. 14 A staging platform and canal should be prepared at the coronal part of the fragment using Gates Glidden drills.…”

Removal of fractured endodontic NiTi file in the apical third of the root canal using an alternative approach. A case report

“…Figure 2 shows the wear and adaptations made to the file and the needle for making the extractor. After creating a space in the instrument/tooth interface, a hypodermic needle with a 0.7 x 25mm caliber was used, suitable for the insertion of a file in its interior, whose function is to attach itself to the fragment and draw it out of them, as previously described as Masserann technique (Thirumalai et al, 2008). The root canal enlargement was performed in stages and radiographs were taken during the process to confirm the path and its proximity to the fragment (Figure 1D).…”