The Effect of Various Canal Contents on the Accuracy of Two Electronic Apex Locators in Detecting Different Size of Root Perforations

Objective: This study was to investigate the effect of different canal contents on accuracy Gold Reciproc Motor (GRM; VDW, Munich, Germany) and DentaPort ZX (Morita Co, Kyoto, Japan) in determination artificial root perforations. Methods: Forty mandibular premolar teeth were included this study. The crowns removed lengths standardized be 14±1 mm. Roots divided into 2 groups (n=20). Artificial perforations created 0.5±0.1mm 1±0.1 mm size respectively. actual (AL) up perforation areas measured under stereomicroscope. Electronic measurements (EL) obtained by GRM dry conditions presence NaOCl (5.25%), EDTA (17%) blood. difference calculated subtracting ALs from ELs. positive when measurement longer than AL negative shorter. Friedman Wilcoxon signed-rank tests used analyze data (p˂0.05). Results: There no significant differences amongst intracanal for both apex locators with 1 In a 0.5 not affected most accurate GRM. Conclusion: Within limitation study, did affect sizes, whereas size, conditions..