Fig. 4

Blinded and not blinded measurements of the least resorbed (LR) and most resorbed (MR) side of the root in millimeters measured on histology (gold standard), cone beam computed tomography (CBCT), periapical radiographs, and panoramic radiograph (PAN). PAN differed significantly (p < 0.05) in both blinded and not blinded measurements compared to histology