Percentage of periapical lesions before treatment on periapical radiography (PA) and CBCT film Film PA lesions PA CBCT P n% n% <0.01 With lesions 8 15 27 49 No lesions 47 85 28 51 Total 55 100 55 100 Percentage of periapical lesionsin CBCT was higher than that in periapicalfilm (49% and 15%) (p <0.01).