31
Excessive bleeding into the canal
from apical foramen.
This bleeding may contact the gingiva
and the device shows inaccurate
measurement. The bleeding should be
arrested before measuring the
working length.
If Irrigating solutions used in the root
canal are in contact with oral tissues,
the measurement will be inaccurate.
Please make sure no solution is in
contact with oral tissues before
measuring the working length.
Fractured crown
If the crown is fractured and gingival
tissue overgrows into the access
cavity, contact between the gingival
tissue and the file will result in an
inaccurate measurement. Pre endo
buildup is recommended to avoid the
contact tissue with the endodontic
file.
Fractured root
Leakage through a fracture line in the
root causes electrical leakage and lead
to inaccurate measurement
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