To the top

Page Manager: Webmaster
Last update: 9/11/2012 3:13 PM

Tell a friend about this page
Print version

Computed tomography (CT) … - University of Gothenburg, Sweden Till startsida
To content Read more about how we use cookies on

Computed tomography (CT) in the selection of treatment for root-filled maxillary molars with apical periodontitis

Journal article
Authors F. J. M. de Almeida
S. Huumonen
Anders Molander
A. Ohman
Thomas Kvist
Published in Dentomaxillofacial Radiology
Volume 45
Issue 5
Pages 20150391
ISSN 0250-832X
Publication year 2016
Published at Institute of Odontology
Pages 20150391
Language en
Keywords endodontics, decision-making, tomography, diagnostic efficacy, hierarchical model, decision-making, radiography, retreatment, endodontics, lesions, impact, Dentistry, Oral Surgery & Medicine, Radiology, Nuclear Medicine &, Medical Imaging
Subject categories Dentistry


Objectives: The aims of this study were to evaluate whether the use of CT facilitates agreement among endodontists in selecting treatments for root-filled maxillary molars with apical periodontitis and to assess the efficacy of CT in choosing a treatment for such teeth. Methods: 39 root-filled maxillary molars from 34 patients with suspected apical periodontitis were independently evaluated by 4 endodontists and 1 postgraduate student (decision-makers). Treatment decisions were made based on intra-oral radiographs and a fictive clinical history. After 1-3 months, the same decision-makers repeated the examination of the same teeth but with additional information from a CT examination. Agreement between decision-makers with or without the availability of the CT results was measured with Cohen's kappa coefficient. Differences in selected treatments with or without accessibility to the CT results were plotted for the same endodontists using descriptive statistics. Results: The agreement in assessments among endodontists was slight or fair before the CT results were available (range: 0.081-0.535). No increase was observed after reviewing the CT results (range: 0.116-0.379). After the use of CT, the treatment plan was changed 38-76% of the time by all decision-makers, and the changes affected 57.8% of the cases in the study. Conclusions: The endodontists in this study exhibited a low degree of agreement when choosing a treatment for root-filled maxillary molars with apical periodontitis. A CT examination of the investigated teeth did not result in a significantly higher degree of agreement, and CT frequently contributed to a shift in the selected therapy.

Page Manager: Webmaster|Last update: 9/11/2012

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?