7.
General Explanations
1)
Reading the Meter
The
position
of
the
file
tip
is
indicated
by
the
meter
in
the
display.
The audible alarm will begin to beep slowly when the
meter reaches 2.
The
bar
indicating
the
apical
constriction
of
the
root
canal
flashes on and off.
dicator Bar
Apical Constriction In
The meter’s 0.5 reading indicates that the tip of the file is in the
vicinity of the apical foramen
an average of 0.2~0.3 mm
past the entrance to the apical constriction towards the apex ).
At this point the
picture of the
root canal will
start flashing
and
the sound of the alarm will change.
\f the file
reaches the
major foramen
(meter
reading
the
alarm
will
change
to
a
single,
sustained
beep
and
the
word
“APEX”
will
begin
flashing.
The small
triangle
located
at the
lower right , which also indicates
will also begin flashing.
The
position
indicated
by the 0.5
reading
on the
meter is the
same
for
virtually
all
teeth.
When
the
meter
reaches 0.5, its
sensitivity increases. The difference between meter readings 0.5
and 1.0 is approximately equivalent to 0.2 ~ 0.5mm.
Flashes :
Meter reads 0.