Clinical management of endodontic instrument fracture: report of two clinical cases

Admin Dental Press

Edition V07N02 | Year 2017 | Editorial Case Report | Pages 39 to 45

Bernardo Almeida Aguiar, Luciana Maria Arcanjo Frota, Fauzer Deison Araújo Silva, Alrieta Henrique Teixeira, Bruno Carvalho De Sousa, Bruno Carvalho De Vasconcelos

Introduction: The fracture of an endodontic instrument represents a serious risk to the continuity of the endodontic treatment. Several factors contribute to the occurrence of fractures such as erroneous cinematic, exaggerated pressure and torsion movement, repetitive use of endodontic instruments, metal fatigue, and lack of knowledge about the anatomy of the root canal system. When an instrument fracture happens, there are the options of maintaining the fragment within the canal, or removing it via canal, or through periapical surgery. Objective: The aim of this study was to report two clinical cases of fractures of Lentulo spirals. Due to the peculiarities of each situation, the cases were approached with two different clinical conducts. Case reports: Case 01 – due to anatomical favorable characteristic and to the impossibility of removing the separated fragment, it was decided to proceed to the obturation maintaining the fractured instrument within the canal. Case 02 – the separated instrument was removed via canal using a hypodermic needle associated with a manual file. Conclusion: Considering the exposed, clinical experience and hand ability must be associated with knowledge about anatomy and instrument features, to avoid accidents such as fractures. Following the indications of use of each instrument minimize the risk of intercurrences, and reduces the chances of complications.

Endodontics, Dental instruments, Fractures, stress, Root canal preparation,

Aguiar BA, Frota LMA, Silva FDA, Teixeira AH, Sousa BC, Vasconcelos BC. Clinical management of endodontic instrument fracture: report of two clinical cases. Dental Press Endod. 2017 May-Aug;7(2):39-45. DOI:

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