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6.6.3 Over-Instrumentation
A red "over" segment and an audio warning signal (rapid intermittent
signal) indicate that the file has passed the apex – see Fig. 8.
6.6.4 Completion of the measurements
Before unplugging the measurement cable from the device
receptacle, disconnect the lip clip and the file clip from the
patient.
Move the file stopper to the selected reference point on the tooth.
Gently remove the file from the canal and measure the apical
length between the stopper and the file tip.
Note
Determination of working length for canal shaping is a subject of
dentist's professional judgment. In most cases subtraction of 0.5
mm from the measured apical length provides clinically acceptable
working length. Nevertheless, in each case the dentist should
define proper working length based on his experience, apex
locator readings, radiographs and other available data.
6.7
Sound Adjustment
X-Smart
enables monitoring of the progression of the file within the canal in
addition to visual monitoring.
The volume can be adjusted by
pressing the
the bottom left corner of the screen
and sliding the scroller.
®
Apex Locator is equipped with an audio signal which
Volume icon on
14/38
Fig. 9
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