Related Experiment Video
Updated: Mar 10, 2026
Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization
Published on: February 23, 2024
Influence of Cone-Beam Computed Tomography filters on diagnosis of simulated endodontic complications
F S Verner1, P S D'Addazio2, C N Campos3
1Division of Oral Radiology, Department of Dentistry, Federal University of Juiz de Fora, Governador Valadares, Minas Gerais, Brazil.
Aim:
To evaluate the influence of cone-beam computed tomography (CBCT) filters on diagnosis of simulated endodontic complications.
Methodology:
Sixteen human teeth, in three mandibles, were submitted to the following simulated endodontic complications: (G1) fractured file, (G2) perforations in the canal walls, (G3) deviated cast post, and (G4) external root resorption. The mandibles were submitted to CBCT examination (I-Cat® Next Generation). Five oral radiologists evaluated the images independently with and without XoranCat® software filters. Accuracy, sensitivity and specificity were determined. ROC curves were calculated for each group with the filters, and the areas under the curves were compared using anova (one-way) test. McNemar test was applied for pair-wise agreement between all images versus the gold standard and original images versus images with filters (P < 0.05).
Results:
G1 was the most difficult endodontic complication to diagnosis, followed by G2, G4 and G3. There were no differences between areas under the ROC curves for the filters in all groups; however, Sharpen Super Mild filter had the best results for G1 (0.47), Angio Sharpen Low 3 × 3 for G2 (0.93), Angio Sharpen Low 3 × 3, S9, Shadow and Sharpen for G3 (1.00) and Sharpen 3 × 3 for G4 (1.00). The McNemar test revealed significant differences between all filters with the gold standard (P = 0.00 for all filters) and the originals images (P = 0.00 for all filters) only in G1 group. There were no differences in the other groups.
Conclusions:
The filters did not improve the diagnosis of the simulated endodontic complications evaluated. Their diagnosis remains a major challenge in clinical practice.
