Clinical Accuracy of Electronic Apex Locator in Measuring Working Length during Root Canal Treatment

Background: Obtaining a correct working length is critical to success of endodontic therapy. The procedure for establishment of working length should be performed using techniques that have been proven to give valuable and accurate results and methods that are practical and efficacious. The development of the electronic apex locator has helped make the assessment of working length more accurate and predictable. So the objective of this in vivo-ex vivo study was to evaluate the clinical efficacy of electronic apex locator in measuring the working length of the root canal in vivo, and comparing the lengths so measured to the actual working length, ex vivo, after extraction.

 

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