Comparative Evaluation of Accuracy of Four Different Electronic Apex Locators in Working Length Determination in Teeth with Irreversible Pulpitis - An in Vivo Study

Aim: The purpose of this clinical study is to compare and evaluate the accuracy of four different apex locators with intraoral periapical (IOPA) radiograph in multirooted teeth with and without rubber dam isolation. Methods and materials: Eighty Canals in multirooted teeth were selected for this clinical study. After anesthesia and endodontic access cavity preparation, the orifices of root canals were irrigated with 2ml of 3% sodium hypochlorite solution. Working length determination was done using #10 k file. Canals were divided into two groups and 8 subgroups. Group-1 with rubber dam isolation and Group-2 without rubber dam isolation. Apex locators: Dentaport ZX, E-pex Pro, Romiapex A-15, Raypex 6 were used to determine the working length with and without isolation in each subgroup. Statistical analysis: Student Paired t Test and McNemar's Test. Results: Dentaport ZX has given the highest accuracy with and without isolation, followed by Romiapex A-15 and E-pex pro without isolation. Conclusion: Dentaport ZX is a promising apex locator with and without isolation.