Dentsply Maillefer propex pixi Manuel D'utilisateur page 22

# Problem
5 Display is not steady during
the procedure.
6 The transmission of the
electric signal is interrupted.
The device does not show
file progression inside the
canal.
Possible cause
1. There is not a good
contact between the
lip clip and the oral
mucosa.
2. The connection hook is
soiled.
3. Deep caries provides a
conductive path outside
the canal.
4. Perforation.
5. Large lateral canal.
1. Bad electrical contact.
2. The connection hook is
not properly connected
to the file.
3. The root canal is
obliterated.
4. In the case of re-
treatment: old filling
material residues may
block the root canal.
5. The root canal
may be blocked by
the remnants of a
medication (e.g.
calcium hydroxide).
22
Solution
1. Ensure a good
contact between the
mucosa and lip clip
(Place the lip clip
in the labial angle
opposite the tooth to
be treated).
2. Clean the connection
hook (with Ethanol).
3. Block the external
conductive path.
4. Remove the file,
close the perforation
and repeat the apex
detection procedure,
carefully inserting the
file into canal.
5. Try continuing the
procedure by gently
advancing the file.
1. Perform the cable
connection test as
described in the user
manual, section 6.5.
2. Place the connection
hook on the metal
part of the file below
the plastic handle.
3. Check the
comparative X-ray
image for hints.
4. Remove old root
filling material
residues prior to use.
5. Completely remove
the remnants prior to
use.