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

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

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]

ISSN: 1746-160X