21
Problems
Possible causes
Solutions
Display not steady while
measuring: the measurement
result is rather longer or
shorter; numerical display
irregular.
If the connection between the
lip hook and the oral mucosa
is ok?
Make sure the lip hook has contacted the
oral mucosa at a good position.
Is there a blood/saliva
overflowing, glued to the
crown?
Blood, liquid overflow from the root canal,
glued to the crown or the tooth neck,
will cause short-circuit then cause the in-
normal phenomena. Clean the blood and
the liquid.
If the root canal is filled with
blood, liquid?
Once the endo needle contact the surface
of the root canal which is filled with
blood, liquid, it will display “OVER”
immediately. In this case, push the needle
to the apical root canal, then the display
will be normal, you can measure the length
of the root canal correctly.
If there is liquid, scrap on the
tooth surface?
Clean the tooth surface.
If the endo needle contact the
gums?
The LCD will display “OVER” if the endo
needle contact the gums.
