Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2014  |  Volume : 17  |  Issue : 3  |  Page : 225-229

Comparison of periapical radiography with cone beam computed tomography in the diagnosis of vertical root fractures in teeth with metallic post


1 Department of Dentistry, Federal University of Sergipe, Aracaju - Sergipe, Brazil
2 Department of Dentistry, State University of Maringá, Brazil

Correspondence Address:
Wilton Mitsunari Takeshita
Department of Dentistry, Federal University of Sergipe, Claudio Batista s/n - Cidade Universitária Santo Antônio, Zip Code: 49060-100, Aracaju - Sergipe
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.131781

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Aim: To compare the diagnostic accuracy of conventional periapical radiography and cone beam computed tomography (CBCT) in detecting vertical root fracture (VRF) in tooth with metallic post (MP). Materials and Methods: Twenty endodontically-treated teeth received MPs, artificial fractures were created in 10 teeth, and they were all examined with tomography and radiography. The sample consisted of periapical radiography with post and without post, and tomography with post and without post; each group with five fractured and five non-fractured teeth. The images were evaluated by three dental/maxillofacial radiologists and statistical validations were carried out using receiver operating characteristic (ROC) analysis. Results: Sensitivity and specificity of the area under the ROC (Az) of tomography with post (Az = 0.953) and without post (Az = 0.956) were significantly higher than those of periapical radiography with post (Az = 0.753) and without post (Az = 0.778). Conclusion: CBCT was more accurate than conventional periapical radiography in detecting VRF.


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