Aim:

To analyse the degree of agreement between students and teachers at different academic units regarding the radiographic evaluation of endodontic treatments performed on human teeth “ex vivo”.

Materials and methods:

One teacher and one student from seven Academic units, two Departments of Endodontics in Argentina and one each in Mexico, Ecuador, Spain, Chile and Portugal conducted a radiographic evaluation of 357 endodontic treatments performed by undergraduate students. According to their individual criteria, they determined whether the treatments were adequate or inadequate. Kappa coefficient was used for statistical analysis.

Results:

The Kappa value was between 0.04 and 0.30, considered as an indicator of poor agreement, and varied according to the academic institution where the data had been recorded.

Conclusion:

The level of agreement in classifying the results of the radiographic evaluation of endodontic treatments varies between undergraduate students and teachers at the different academic units.