Comparative evaluation of the accuracy of six different apex locators in working length determination of molars using intraoral periapical radiographs: An study.

Context: One of the crucial steps in endodontic treatment is determining the working length (WL). There are various methods for performing this procedure, one of which is an electronic apex locator (EAL) measurement.

Aims: The aim of this study was to determine the accuracy of six EALs, i.