The aim of thisEighty-eight single-rooted premolars were randomly assigned to two groups according to simulated clinical conditions: Group 1: Presence of irrigant (5% NaOCl) and Group 2: Presence of blood. WL was determined with all three EAL and was then compared with actual length (AL) of the tooth, which was measured using Vision Inspection System. The difference between the length measured by EAL and AL was tabulated and statistically analyzed using one-way analysis of variance (ANOVA) withMeasurement using Dentaport ZX, Rootor, and E-Pex Pro had an accuracy of 99.79%, 99.69%, and 99.64%, respectively, in Group 1 and 99.95%, 99.7%, and 99.74%, respectively, in Group 2. ANOVA revealed that the mean error value is least for Dentaport ZX followed by Rootor and then E-Pex pro EAL.Dentaport ZX gave better results both in the presence of NaOCl and blood followed by Rootor and E-Pex Pro EALs.
