Abstract :
Background: Instrument separation is one of the most stressful endodontic mishaps, that can occur any time during the root canal treatment. Several techniques have been employed to facilitate instrument retrieval, however, most of them are technique sensitive, expensive and require great expertise.
Aim: Through this paper, an economic and convenient technique is suggested to retrieve the fractured segment with a combination of both hand files and sonic agitation.
Materials and Methods: A 35 year old male patient presented with pain in lower anterior tooth region. Clinical examination revealed an intact PFM (Porcelain fused to metal) crown in 31 with no soft tissue abnormality and radio-visio-graph indicated a fractured H-file fragment extending from the apical third to 2 mm beyond the radiographic apex with an associated radiolucency. Thus, a retreatment aimed at retrieval of the fractured instrument followed by obturation and post endo restoration was planned without removing the fixed prosthesis.
Conclusion: It was possible to successfully remove broken file from the root canal using Sonic agitation coupled with H files with minimal damage to radicular dentin.
Keyword :
Hfile, Braiding technique, File retrieval, Access through crown, Sonics