Endodontic - Apex Locators

Contributes 25 minutes to your CPD


(or included in your £37.99 yearly subscription)

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Course Details:

This course explores the theory and practice of using apex locators to establish an accurate working length in endodontic treatment.

You will be presented with a short presentation followed by an assessment.

If you achieve 80% or more, you pass the course and will receive a printable certificate to place in your CPD folder. If you do not pass, you will have the opportunity to review the content and retake the assessment when you feel confident.


This course aims to enhance the knowledge and practical application of the use of apex locators to enable high-quality endodontic treatments to be achieved.


Learners will be able to:

  • Describe the history of the development of modern electronic apex locators.
  • Explain the anatomic landmarks of the tooth apex.
  • Select the appropriate endodontic file when using an apex locator.
  • Discuss the benefits of different methods of working length determination.
  • Discuss the issues that can arise when using apex locators.
  • Explain how to establish a predictable working length form the information provided by an apex locator.

Learning Outcomes:

The learner understands:

  • How apex locators function.
  • The features of modern apex locators and their meaning.
  • How to safely and effectively use an apex locator.
  • The methods of troubleshooting difficult situations that may cause inaccurate readings.
  • The anatomy of the root apex.
  • The impact on outcomes of having an accurate, consistent and repeatable technique for working length determination.