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Calcimator

Apex Locator Calibration Calculator

Calibration verification for electronic apex locators.

Inputs

Results

Deviation (mm)

0.5

Adjusted accuracy score100
Recommended working length (mm)19.5
Tip position vs apex (mm)0.5
Calibration status (1-3)2
How to Use This Calculator
  1. Enter the Radiographic Length (mm) from the preoperative periapical radiograph.
  2. Input the Apex Locator Reading (mm) at the 0.0 or 0.5 apex locator zone.
  3. Select the Initial File Size (ISO) and Canal Curvature type.
  4. Review the Deviation (mm) between radiographic and electronic readings.
  5. Use Recommended Working Length (mm) and Adjusted Accuracy Score to set your length before shaping.
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