During endodontic treatment a file separates. The fragment is 3mm long and is lodged tightly in the apical third of the canal. No radiographic changes at the apex are evident. In addition to informing the patient, the most appropriate management is to
complete the root canal filling and monitor at recall examination.
containing the separated instrument.
resect the apical section of the root
perform an apicoectomy and place a retrograde filling.
extract the tooth.
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