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Clinical Oral Investigations
Published in: Clinical Oral Investigations 3/2008

01-09-2008 | Original Article

Cone-beam computed tomography in assessment of periodontal ligament space: in vitro study on artificial tooth model

Authors: Nurdan Özmeric, Irina Kostioutchenko, Georg Hägler, Matthias Frentzen, Pia-Merete Jervøe-Storm

Published in: Clinical Oral Investigations | Issue 3/2008

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Abstract

The aim of this in vitro study was to compare cone-beam computed tomography (CBCT) to conventional radiography (RG) in the assessment of the periodontal ligament space. A phantom with a variable “artificial” periodontal ligament space (0, 100, 200, 300, and 400 μm) was used as a model. The examinations were performed simultaneously with RG and NewTom® 9000 digital volume tomograph. Assorted after increasing widths, 15 RGs and 15 CBCT images were presented for judgment to 20 dentists (DD), 20 dental assistants, and 20 dental students. Several weeks later, the same images were randomly mixed and presented to the same 20 DD again. The trial shows that RG gaps wider than 200 μm could be correctly identified by all participants with an accuracy of nearly 100%. A significant difference was observed between the modalities (p < 0.05 and p < 0.001) where conventional RGs performed better than CBCT for assessment of periodontal ligament space. Interobserver variation in relation to each technique was evaluated and no significant difference was found (p > 0.05). In subjective evaluations of image quality with CBCT, the results were basically inferior for images of artificial periodontal ligament space, regardless of the experience of the observers.
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Metadata
Title
Cone-beam computed tomography in assessment of periodontal ligament space: in vitro study on artificial tooth model
Authors
Nurdan Özmeric
Irina Kostioutchenko
Georg Hägler
Matthias Frentzen
Pia-Merete Jervøe-Storm
Publication date
01-09-2008
Publisher
Springer-Verlag
Published in
Clinical Oral Investigations / Issue 3/2008
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-008-0186-8

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