Coxo C-SMART-1 Pro User Manual page 27

C-SMART-I Pro U11er Manual
Symptom
Extremely dry root canal impeding
the conductive path and preventing
the normal operation of the device.
.&..
caution
In some cases,the position of the file can not be determined accurately.
Special condition symptom:
Symptom
Exceptionally large apex foramen due
to lesion or incomplete formation.
Root fracture or perforation
Comparison of electronic length determination versus radiography:
X-ray radiography shows two-dimensional projection of three-dimensional
root canal system. In some cases ,the radiograph display length does not
match the electron assay length.
In the case of a lateral canal curvature ,the x-ray may show a shorter
working length than the device's measured value.
Electronic length measured using the instrument is usually more accurate
more accurate than the radiographic length on the X-ray.
8.3.1.5 Set the DR'S CHOICE apex position:
This feature enables to mark an individualpredetermined reference position
at the required distance from the apex. This variable apical arrow can be set
between the green bar and the yellow bar.
When DR'S CHOICE apical arrow is set, clear visual and audio indication is
given that the file tip has reached this pre-selected position.
To set the DR'S CHOICE apex position, follow the next steps:
• Press the SET key, the apex setting icon becomes adjustable state, (Fig.24)
·Press the Up or Down key to adjust the apex position.
Solution
Rinse root canal with irrigating
solution such as NaCI or NaOCI
and dry the access cavity with a
cotton pellet/ air-blower.
Solution
May lead to shorter measurement
than the actuallength.
May lead to incorrect measurements
C-SMART-1 Pro
• The changed value will be saved automatically. Press any key other than SET
and Up or Down key to exit the setting, or exit the setting automatically after 3
seconds.
• When measuring the root apex arrow shown as Fig.25 .
:(· •.,
Ml
Fig. 24 Set the apex position
8.3.1.6 Functional check of the apex locator
It is recommended to check the performance of the Apex Locator once a week
the detailed check methods, see Chapter 8.4.
Uoer Manual
1.2
* •.,
Ml
Fig.25 Measurement process
,