Accuracy of electronic apex locators using heat-treated Ni-Ti file |
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Authors: | Kang-Young Heo DDS Ho-Keel Hwang DDS PhD Hyoung-Hoon Jo DDS MSD |
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Affiliation: | Department of Conservative Dentistry, School of Dentistry, Chosun University, Gwangju, South Korea |
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Abstract: | This study investigated the accuracy of two electronic apex locators (DentaPort and Bingo) using heat-treated nickel-titanium files. The true root canal length of 30 single-rooted teeth was determined using K files. Next, the electronically measured length was determined using two nickel-titanium files (ProGlider and HyFlex EDM Glide Path File) with two electronic apex locators at the ‘APEX’ marks. The accuracy of the electronic apex locator was evaluated by comparing the true root canal length and electronically measured length for each measurement. There was no significant difference between the measurements with two nickel-titanium files, and all differences between true root canal length and electronically measured length were within ±0.5 mm regardless of the type of nickel-titanium files or electronic apex locators. Based on the results, the heat treatment of the nickel-titanium files showed no adverse effects on the working length determination using electronic apex locators. |
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Keywords: | electronic apex locators endodontics HyFlex EDM root canal length working length determination |
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