<h4>Aim</h4>To compare the accuracy of two electronic apex locators (EALs) in the same teeth in vivo.<h4>Methodology</h4>The working lengths in 20 teeth with a single canal were determined with two different EALs (Root ZX; J. Morita Corporation, Tokyo, Japan and Raypex 5 VDW, Munich, Germany) before...
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