1Assistant professor, Department of Oral and maxillofacial surgery, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, Delhi, India
2Senior Research Associate, Department of Oral and maxillofacial surgery, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, Delhi, India
3Senior Research Associate, Department of Conservative Dentistry and Endodontics, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, Delhi, India
4Associate Professor, Department of Conservative Dentistry and Endodontics, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, Delhi, India
5Professor and Head, Department of Conservative Dentistry and Endodontics, Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, Delhi, India
Online published on 22 January, 2013.
This study aims to present the management of a rare case of a separated endodontic instrument in the periradicular area. The broken instrument had penetrated within and along the mandibular canal from the periapical zone of mandibular second molar after endodontic treatment, leading to acute neurological symptoms. These subsided completely following surgical removal of the separated instrument. Because of the close anatomic relation between the second molars and the inferior alveolar nerve, careful clinical and radiographic examinations should always be performed before endodontic treatment of these teeth, so as to prevent iatrogenic injuries of the type described here. Dentists should also be aware of the anatomic characteristics of the mandibular canal (i.e., cribriform rather than solid), as well as the consequences of overinstrumentation.
Paresthesia, Separated, Mandibular canal, Inferior alveolar nerve, Overinstrumentation
