Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Endod. 2009 Jul;35(7):1009-12. doi: 10.1016/j.joen.2009.04.006.

Accuracy of periapical radiography and cone-beam computed tomography scans in diagnosing apical periodontitis using histopathological findings as a gold standard.

Author information

  • 1Department of Pediatric Clinics, Preventive and Social Dentistry, School of Dentistry, University of São Paulo, Ribeirão Preto, Brazil. franciscogarcia@forp.usp.br

Abstract

INTRODUCTION:

The aim of this study was to evaluate the accuracy of two imaging methods in diagnosing apical periodontitis (AP) using histopathological findings as a gold standard.

METHODS:

The periapex of 83 treated or untreated roots of dogs' teeth was examined using periapical radiography (PR), cone-beam computed tomography (CBCT) scans, and histology. Sensitivity, specificity, predictive values, and accuracy of PR and CBCT diagnosis were calculated.

RESULTS:

PR detected AP in 71% of roots, a CBCT scan detected AP in 84%, and AP was histologically diagnosed in 93% (p = 0.001). Overall, sensitivity was 0.77 and 0.91 for PR and CBCT, respectively. Specificity was 1 for both. Negative predictive value was 0.25 and 0.46 for PR and CBCT, respectively. Positive predictive value was 1 for both. Diagnostic accuracy (true positives + true negatives) was 0.78 and 0.92 for PR and CBCT (p = 0.028), respectively.

CONCLUSION:

A CBCT scan was more sensitive in detecting AP compared with PR, which was more likely to miss AP when it was still present.

PMID:
19567324
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk