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2. Use resin needle when measuring the length of root canal and wear gloves to prevent
leakage which causes inaccurate measurement.
3. Do not use worn file clip
4. Clip the file perpendicular as shown
5. When the file reaches the apex, adjust the rubber piece set on the endo file to the reference
point (incisal edge or fossa edge), then pull out the endo file, measure the length between
the top of the file and the rubber piece, and this is the working length of the tooth. It also can
be used with the touch probe instead of file clip, when it is inconvenient to measure the back
teeth
6. Autoclave the lip hook, file clip or touch probe after use
7. Clean the device and measuring wire with 75% alcohol