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7 Operation
Gutta-percha
Retreatment canal which was filled
with gutta-percha
The gutta-percha must be completely
removed to eliminate its insulation, then
pass a small file all the way through the
apical foramen and then put a little
saline in the canal, but do not let it
overflow the canal opening.
Crown
Crown or metal prosthesis that
touches gingival tissue
Accurate measurement cannot be
obtained if the file touches a mental
prosthesis that is touching gingival
tissue. In this case, widen the opening
at the top of the crown so that the file
will not touch the mental prosthesis
before taking a measurement.
Debris
Pulp
Cutting debris on tooth Pulp inside
canal
Remove all cutting debris on the tooth.
Remove all the pulp inside the canal.
Otherwise an accurate measurement
cannot be obtained.
Caries
touches
gums
Caries touching the gums
In this case, electrical leakage through
the caries infected area to the gums are
impossible to obtain an accurate
measurement.
Blocked
Blocked canal
The meter will not run if the canal is
blocked. Opening the canal all the way
to the apical construction to measure it.
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