CBCT imaging is more effective than analog radiography for detecting small voids, and both methods outperform digital radiography, likely due to CBCT's three-dimensional imaging capabilities. In diagnosing large voids, digital radiography showed higher accuracy than the other techniques, while CBCT and analog radiography had similar diagnostic abilities. Variations in image processing and radiation doses used might account for the differences between these techniques.
Eskandarinezhad et al. (Sun,) studied this question.