Accuracy of digital periapical radiography and cone-beam computed tomography in detecting external root resorption

Adriana Gabriela Creanga; Hassem Geha; Vidya Sankar; Fabricio B Teixeira; Clyde Alex McMahan; Marcel Noujeim

doi:10.5624/isd.2015.45.3.153

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Accuracy of digital periapical radiography and cone-beam computed tomography in detecting external root resorption

Journal article

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Accuracy of digital periapical radiography and cone-beam computed tomography in detecting external root resorption

Adriana Gabriela Creanga, Hassem Geha, Vidya Sankar, Fabricio B Teixeira, Clyde Alex McMahan and Marcel Noujeim

Imaging science in dentistry, Vol.45(3), pp.153-158

09/2015

DOI: 10.5624/isd.2015.45.3.153

PMCID: PMC4574052

PMID: 26389057

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Abstract

The purpose of this study was to evaluate and compare the efficacy of cone-beam computed tomography (CBCT) and digital intraoral radiography in diagnosing simulated small external root resorption cavities. Cavities were drilled in 159 roots using a small spherical bur at different root levels and on all surfaces. The teeth were imaged both with intraoral digital radiography using image plates and with CBCT. Two sets of intraoral images were acquired per tooth: orthogonal (PA) which was the conventional periapical radiograph and mesioangulated (SET). Four readers were asked to rate their confidence level in detecting and locating the lesions. Receiver operating characteristic (ROC) analysis was performed to assess the accuracy of each modality in detecting the presence of lesions, the affected surface, and the affected level. Analysis of variation was used to compare the results and kappa analysis was used to evaluate interobserver agreement. A significant difference in the area under the ROC curves was found among the three modalities (P=0.0002), with CBCT (0.81) having a significantly higher value than PA (0.71) or SET (0.71). PA was slightly more accurate than SET, but the difference was not statistically significant. CBCT was also superior in locating the affected surface and level. CBCT has already proven its superiority in detecting multiple dental conditions, and this study shows it to likewise be superior in detecting and locating incipient external root resorption.

Root Resorption

Dental Digital Radiography

Cone-Beam Computed Tomography

Details

Title: Subtitle: Accuracy of digital periapical radiography and cone-beam computed tomography in detecting external root resorption
Creators: Adriana Gabriela Creanga - Division of Dental Diagnostic Science, Rutgers School of Dental Medicine, Newark, NJ, USA
Hassem Geha - Division of Oral and Maxillofacial Radiology, Department of Comprehensive Dentistry, University of Texas Health Science Center San Antonio, San Antonio, TX, USA
Vidya Sankar - Oral Medicine Clinic, University of Texas Health Science Center San Antonio, San Antonio, TX, USA
Fabricio B Teixeira - Department of Endodontics, University of Iowa, Iowa City, IA, USA
Clyde Alex McMahan - Department of Pathology, University of Texas Health Science Center San Antonio, San Antonio, TX, USA
Marcel Noujeim - Division of Oral and Maxillofacial Radiology, Department of Comprehensive Dentistry, University of Texas Health Science Center San Antonio, San Antonio, TX, USA
Resource Type: Journal article
Publication Details: Imaging science in dentistry, Vol.45(3), pp.153-158
DOI: 10.5624/isd.2015.45.3.153
PMID: 26389057
PMCID: PMC4574052
NLM abbreviation: Imaging Sci Dent
ISSN: 2233-7822
eISSN: 2233-7830
Publisher: Korea (South)
Language: English
Date published: 09/2015
Academic Unit: Endodontics
Record Identifier: 9984065992802771

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