Comparative Evaluation of Different Apex Locators as a Diagnostic Tool to Detect Root Perforations: An Study.

Aim: The purpose of this study was to determine how effectively four distinct apex locators could diagnose root perforations in terms of accuracy and repeatability.

Materials And Methods: Eighty mandibular premolars with a single root were instrumented. The distal face of the root was perforated at both the apical and middle thirds, five millimeters from the apical terminus.