Eighteeth E-CONNECT User Manual page 25

Warning
Avoid using apex locator for working length determination in the following
conditions：
（1） Open apex cases.
（2） Draining canals.
（3） Poor isolation from oral environment (avoid seepage of oral fluids
into access cavity).
（4） Root fractures / perforation.
（5） Gutta percha filled canals；
Please use the original accessories, otherwise the device may measure
inaccurately or not even function.
Note
The green part "00" display means major apical foramen (not the minor apical
foramen). Hence it is recommended to reduce the working length by 0.5-1 mm.
The device's screen do not show the actual length of the root canal, the number
reducing only means a trend that file is progressing apically.
The gingival crevicular fluid / saliva / gingival polyp will interfere with device
functioning. Hence it is recommended to isolate the tooth.
The accessories which contact with patient (file folder, lip hook/ lip clip) can be
reused and should be sterilized by high temperature before every time use.
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