Technique and Management of an Iatrogenic Defect Caused During Retrieval by Treating It as A Canal Extension: A Case Report

  • A. R. Vivekananda Pai Department of Conservative Dentistry and Endodontics, Melaka Manipal Medical College (Manipal Academy of Higher Education)(India)
Keywords: Canal Reinforcement, Instrument Retrieval, Mandibular Second Molar, Masserann Technique, Orthograde Approach, Separated Instrument


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.1897

Author Biography

A. R. Vivekananda Pai, Department of Conservative Dentistry and Endodontics, Melaka Manipal Medical College (Manipal Academy of Higher Education)(India)
Professor and Head,Department of Conservative Dentistry and Endodontics


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Case Reports