In vivo comparison of working length determination with two electronic apex locators: Root-ZX and Dentaport Root-ZX.

ABSTRACT Background:: The purpose of our study is to compare the accuracy of two electronic apex locators (EALs) in the same teeth in vivo: Root ZX and Dentaport Root-ZX. Methods and Materials: Twenty-two adult patients, ages 36-71. Thirty single-rooted teeth with one canal that were scheduled for extraction for prosthetic or orthodontic reasons were used. Before commencement of the study was obtained and written consent from each patient. The teeth had completely formed apices confirmed by radiographic evaluation before treatment. The access cavity was prepareted and been identified the root canals and their patency was assessed with k-file #10.The working length were determined by a singl…