Technique and Management of an Iatrogenic Defect Caused During Retrieval by Treating It as A Canal Extension: A Case Report
Keywords:
Canal Reinforcement, Instrument Retrieval, Mandibular Second Molar, Masserann Technique, Orthograde Approach, Separated Instrument
Abstract
Masserann technique is one of the methods suggested for retrieval of separated instruments. However, its application in posterior teeth is risky, difficult, and clinically challenging. This case report illustrates successful application of Masserann technique to retrieve a separated instrument from the middle third of a mesial canal of a mandibular second molar and management of an iatrogenic defect, which was caused during retrieval, by treating it as a canal extension during obturation. This obturation was done with glass ionomer cement based sealer for canal reinforcement. In the absence of other effective techniques, when the separated instrument is tightly lodged in the canal, Masserann technique could be useful for instrument retrieval in posterior teeth. However, its success depends on case selection and clinical skill. Since this technique leads to removal of considerable amount of dentin, use of bonding or adhesive obturation materials could be considered to reinforce and strengthen the root. DOI:10.21276/AOHDR.1897References
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2. Hulsmann M. Methods for removing metal obstruction from the root canal. Endod Dent Traumatol 1993;9: 223-37.
3. Okiji T. Modified usage of the Masserann kit for removing intracanal broken instruments. J Endod 2003; 29: 466-7.
4. Gencoglu N, Helvacioglu D. Comparison of the different techniques to remove fractured endodontic instruments from root canal systems. Eur J Dent 2009; 3: 90-5.
5. Terauchi Y, O’Leary L, Suda H. Removal of separated files from root canals with a new file removal system: case reports. J Endod 2006; 32: 789-97.
6. Yoldas O, Oztunc H, Tinaz C, Alparslan N. Perforation risks associated with the use of Masserann endodontic kit drills in mandibular molars. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2004; 97: 513-7.
7. Scheid RC, Weiss G. Woelfel’s Dental Anatomy. 8th ed. Philadelphia: Lippincoat Williams & Wilkins; 2012.
8. Timpawat S, Harnirattisai C, Senawongs P. Adhesion of a glass-ionomer root canal sealer to the root canal wall. J Endod 2001; 27: 168-71.
9. Cobankara FK, Ungör M, Belli S. The effect of two different root canal sealers and smear layer on resistance to root fracture. J Endod 2002; 28: 606-9.
10. Lertchirakarn V, Timyam A, Messer HH. Effects of root canal sealers on vertical root fracture resistance of endodontically treated teeth. J Endod 2002; 28: 217-9.
Published
2018-03-24
Issue
Section
Case Reports
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