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Table 2 Results of the inter-device agreement which proved to be high

From: Accuracy of electronic apex locators to detect root canal perforations with inserted metallic posts: an ex vivo study

Device 1 Device 2 κwith 95% confidence interval where possible
Pro Pex II Elements Apex Locator 0.86 [0.69; 1.00]
Pro Pex II Apex NRG 0.93 [0.81; 1.00]
Pro Pex II RayPex 5 0.93 [0.81; 1.00]
Pro Pex II RayPex 6 0.86 [0.69; 1.00]
Elements Apex Locator Apex NRG 0.93 [0.81; 1.00]
Elements Apex Locator RayPex 5 0.93 [0.81; 1.00]
Elements Apex Locator RayPex 6 0.86 [0.69; 1.00]
Apex NRG RayPex 5 1.00
Apex NRG RayPex 6 0.93 [0.81; 1.00]
RayPex 5 Raypex 6 0.93 [0.81; 1.00]