6 Operation
Page 18 / 41
Hook the lips to the patient's lips. Ensure
contact with the lips fully. Then the root canal
file is slowly inserted into the unblocked root
canal.
If the patient is fitted with a metal crown or
other conductive devices, the root canal file
clip and the metal part of the file clip should not
be in contact with it, so as to avoid causing
wrong measurement results.
APEX locator should be fixed in patient’s collar
with the clip.
To prevent measurement errors caused by
conduction between the gums or adjacent root
canals, dry the pulp chamber floor with cotton
balls or other means before testing.
Using the correct number and taper of the
canal file, make it fully contact with the canal
wall, is conducive to accurate measurement.
As the root canal file is inserted, the
measurement bar on the screen lights up from
top to bottom.
When displayed as shown in figure 1, the
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