Morita DENTA PORT ZX, Руководство по эксплуатации

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Operation 2018-03-22
Page12

Use files and reamers with plastic handles only. If the file has a metal handle, electrical leakage will
occur when the handle is touched by fingers and it will prevent an accurate root canal measurement.
Even if the file handle is made of plastic, make sure not to touch the metal part of the file with finger.

Do not use damaged file holders. An accurate measurement cannot be made using a damaged file holder.

Clip the file as shown in illustration #1 below. If the file is forced into the position shown in illustration #2,
it may not make a correct measurement and the file holder could be damaged.
4. Press the mode switch to select memory 1, 2 or 3 (M1, M2 or
M3).
* See “Setting and Changing Memory", on page 9 for how to
set the memory contents.
* While an actual measurement is being made, none of the
switches, except the power switch, will work.
5. Insert the file (in most case size 10) until the meter reads 0.5
(this point can be recognized by the change in the alarm
sound as well). Then advance the file with slow clockwise
turns until the word “APEX” begins to flash. When the
apex is reached, turn the file with slow counter clockwise
turns until meter reads 0.5 again. Since some canals have
multiple constrictions, it is essential that the file be taken to
the apex then returned to the apical constriction (0.5 reading).
Position the rubber stopper on the tooth surface as a reference
point to determine the root canal’s working length.
6. Determine the working length
■ If the file tip is at the 0.5 meter reading, subtract from 0.5
to 1.0 mm to determine the working length.
* These working lengths will differ somewhat depending
on each individual tooth. This discrepancy must be
judged by the dentist as he works on the tooth.

Make sure to take an X-ray to check the results.
Rubber Stopper
File Holder
0.5 Reading
Mode Switch
GOOD
1
BAD
2