16
Problem
Possible Solution
when touching the file
clip and the lip clip
- If the behavior persists, the measuring cable may need to
be replaced and/or the device should be sent in for service
– contact your supplier.
The OVER
indication appears
accompanied by frequent
audio beeps
- The file tip has progressed beyond the apical foramen
–
move the file back until the
OVER
indication disappears.
No audio tones
-
The volume was adjusted to “mute” - press the volume
key until the desired volume level is reached.
- Device has malfunctioned - contact your supplier.
Problem
Possible cause
Solution
1. File position indication
is unstable, erratic
results.
2. Measurements are too
short or too long; poor
accuracy.
Is second electrode
(lip clip) making good
contact with mucosa?
Make sure the lip clip makes good
contact with the oral mucosa
Is the file clip dirty?
Clean the file clip with
Ethanol 70-
80% vol.
Is blood or other
fluids over flowing the
access cavity of the
tooth?
If blood or other fluids are
overflowing the access cavity they
may create a conductive path
outside the canal and cause
incorrect measurements (
“OVER”
indication, unstable readings, etc.).
Check the rubber dam isolation,
use OraSeal
®
Caulking or Putty to
repair rubber dam leaks. You may
use ViscoStat
®
or Astrigedent
®
for
control the gingival tissue
bleeding. Clean and dry the pulp
chamber and tooth crown
thoroughly.
Is the canal filled with
blood, or chemical
solutions?
The canal length indicator may
suddenly swing when it breaks the
surface of fluids inside the canal,
but it will return to normal as the
file is advanced toward the apex.
Is the tooth surface
covered with tooth
debris, smear layer or
chemical solutions?
Clean entire tooth surface.
Is the file touching
the gingival tissue?
This might lead to incorrect
readings or cause the canal length
indicator suddenly to jump all the
way to the “OVER” position.
