31
Problem
Check Points
Response
Instructions for Use 2019-03-20
Canal Length Indica-
tor overreacts or is
too sensitive.
(Measurements
are too short, poor
accuracy or erratic
results.)
• Are there lateral canals or is the tooth
fractured?
• The canal length indicator bar may jump to the APEX
when it reaches the opening of a lateral canal or the
opening of a fractured tooth that allows the current to
flow to the gingival tissue.
• Does a broken crown allow leakage of
electric current?
• Build up an insulating barrier to stop the leakage.
• Is there a lesion at the apex?
• A lesion can destroy the apical foramen through
absorption and an accurate measurement cannot be
obtained.
• Is the file holder broken or dirty?
• Replace or clean the file holder.
Canal Length Indica-
tor does not move at
all or only when the
file tip is close to the
apical foramen.
• Is the canal blocked?
• Open the passage all the way through the apical
constriction first and then take the measurement.
• Is the apical foramen very large and
open?
• If the apical foramen is large or wide open and not
completely formed, the canal length indicator bar will
suddenly jump when the file tip gets close to the apex.
• Is the canal extremely dry?
• Moisten the canal with oxydol or a saline solution.
Cannot set Memory
Bar for file tip at
desired point.
• Is desired indicator bar lit up?
• Advance file to desired point.
• Did you press the Set Switch?
• Press the Set Switch firmly.
• Has file tip gone beyond the APEX?
• Move file tip up above the APEX.
Summary of Contents for Endostar
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