Comparison of the diagnostic accuracy of cone beam computed tomography and three intraoral radiographic systems in the diagnosis of carious lesions in vitro.

  • Jorge A. Beltrán Universidad Peruana Cayetano Heredia, Lima, Perú
  • Roberto A. León-Manco Universidad Peruana Cayetano Heredia, Lima, Perú.
  • Maria Eugenia Guerrero Universidad Peruana Cayetano Heredia, Lima, Perú.  Universidad Nacional Mayor de San Marcos, Lima, Perú.


Objective: The objective of the study was to compare the diagnostic accuracy of cone beam computed tomography and three intraoral radiographic systems in the detection of in vitro caries lesions. Material and Methods: One hundred teeth (46 molars and 54 premolars) were evaluated, including 176 proximal surfaces and 90 occlusal surfaces, with or without dental caries lesions. Digital images of all teeth were obtained using specific intraoral radiographs, VistaScan DürrDental®phosphor-plate radiography, XIOS XG Sirona® digital sensor radiography, and CBCT I-CATTM. Observers evaluated the images for the detection of caries lesions. The teeth were clinically sectioned and stereomicroscopy served as a validation tool. The relationship of sensitivity and specificity between all systems was determined through the ROC curve using Az values. Results: The values of the area under the curve (Az) selected for the CBCT I-CATTM system were 0.89 (0.84-0.93), for conventional radiography 0.71 (0.66-0.76), digital sensor radiography 0.74 (0.70-0.78) and digital radiography with phosphor-plates 0.73 (0.69-0.77). Statistically significant differences were found between the CBCT I-CATTM system and intraoral radiographic systems (p<0.01). The sensitivity and specificity values for the CBCT I-CATTM were 0.84 and 0.93 respectively. Conclusion: CBCT has a high sensitivity and specificity compared to intraoral radiographic systems for the diagnosis of dental caries lesions in vitro.

Author Biography

Jorge A. Beltrán, Universidad Peruana Cayetano Heredia, Lima, Perú
Interim Editor -in- Chief


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How to Cite
BELTRÁN, Jorge A.; LEÓN-MANCO, Roberto A.; GUERRERO, Maria Eugenia. Comparison of the diagnostic accuracy of cone beam computed tomography and three intraoral radiographic systems in the diagnosis of carious lesions in vitro.. Journal of Oral Research, [S.l.], v. 9, n. 6, p. 466-473, dec. 2020. ISSN 0719-2479. Available at: <>. Date accessed: 27 feb. 2021. doi: