Diagnostic Ability of a Cone-Beam Computed Tomography Scan to Assess Longitudinal Root Fractures in Prosthetically Treated Teeth

Saulo Leonardo Sousa Melo; Eduardo Antunes Bortoluzzi; Murillo Abreu; Letícia Ruhland Corrêa; Marcio Corrêa

doi:10.1016/j.joen.2010.08.025

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Diagnostic Ability of a Cone-Beam Computed Tomography Scan to Assess Longitudinal Root Fractures in Prosthetically Treated Teeth

Journal article

Peer reviewed

Diagnostic Ability of a Cone-Beam Computed Tomography Scan to Assess Longitudinal Root Fractures in Prosthetically Treated Teeth

Saulo Leonardo Sousa Melo, Eduardo Antunes Bortoluzzi, Murillo Abreu, Letícia Ruhland Corrêa and Marcio Corrêa

Journal of endodontics, Vol.36(11), pp.1879-1882

11/01/2010

DOI: 10.1016/j.joen.2010.08.025

PMID: 20951305

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Abstract

This study evaluated the influence of cast-gold posts on the diagnostic ability of a cone beam computed tomography (CBCT) system in assessing longitudinal root fractures. In addition, the influence of gutta-percha and variations in voxel resolution were assessed. One hundred eighty endodontically prepared teeth were divided into 3 experimental and 3 control groups and placed in a dry human skull. The teeth in the experimental groups were artificially fractured. Certain experimental and control groups were filled with gutta-percha cones. Other experimental and control groups were filled with cast-gold posts. All the teeth were viewed by using a tomography scan with 2 voxel resolution protocols (0.3-mm and 0.2-mm). A calibrated examiner, blinded to the protocol, assessed the images by using the nominated scan software. The kappa values obtained for intraobserver reproducibility were 0.84 and 0.93 for 0.3-mm and 0.2-mm voxel resolution, respectively. The presence of gutta-percha or posts reduced the overall sensitivity and specificity in both voxel resolutions, but with no significant association. The CBCT specificity values were similar and did not depend on the voxel resolution adopted. In contrast, the sensitivity values were significantly higher for 0.2-mm voxel resolution in nonfilled ( P < .05), gutta-percha ( P < .001), and overall ( P < .001) groups. The CBCT diagnostic ability was not influenced by the presence of posts or gutta-percha, and the 0.3-mm voxel resolution images were demonstrated not to be a reliable protocol for the investigation of longitudinal root fractures.

Cone-beam computed tomography

dental posts

diagnostic imaging

root canal filling materials

tooth fractures

tooth root

Details

Title: Subtitle: Diagnostic Ability of a Cone-Beam Computed Tomography Scan to Assess Longitudinal Root Fractures in Prosthetically Treated Teeth
Creators: Saulo Leonardo Sousa Melo - Universidade Estadual de Campinas (UNICAMP)
Eduardo Antunes Bortoluzzi - Universidade Federal de Santa Catarina
Murillo Abreu - Universidade Federal de Santa Catarina
Letícia Ruhland Corrêa - Universidade Federal do Rio Grande do Sul
Marcio Corrêa - Universidade Federal de Santa Catarina
Resource Type: Journal article
Publication Details: Journal of endodontics, Vol.36(11), pp.1879-1882
DOI: 10.1016/j.joen.2010.08.025
PMID: 20951305
NLM abbreviation: J Endod
ISSN: 0099-2399
eISSN: 1878-3554
Publisher: Elsevier Inc
Number of pages: 4
Language: English
Date published: 11/01/2010
Academic Unit: Radiology; Oral Pathology, Radiology and Medicine
Record Identifier: 9985244559002771

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