assessment of accuracy of Propex II, Root ZX II, and radiographic measurements for location of the major foramen.

Objectives: The aim of this study was to assess the accuracy of 2 third-generation electronic apex locators (EALs), Propex II (Dentsply Maillefer) and Root ZX II (J. Morita), and radiographic technique for locating the major foramen (MF).

Materials And Methods: Thirty-two premolars with single canals that required extraction were included.