Ledging and blockage of root canals during canal preparation: causes, recognition, prevention, management, and outcomes
نویسنده
چکیده
Ledge formation, that is the iatrogenically created irregularity in the root canal that impedes access of instruments to the apex, and canal blockage caused by packing dentin chips and/or tissue debris are the least-studied parameters of root canal instrumentation. Variables associated with ledge formation and canal blockage by dentin chips and/or tissue debris are presented. Emphasis is given to their most common causes, recognition, management, prognosis, and prevention.
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