Comparison of cone-beam computerized tomography and intraoral radiographs for determination of the periodontal ligament in a variable phantom

Pia-Merete Jervøe-Storm; Martin Hagner; Jörg Neugebauer; Lutz Ritter; Joachim E Zöller; Søren Jepsen; Matthias Frentzen

doi:10.1016/j.tripleo.2009.10.023

Comparison of cone-beam computerized tomography and intraoral radiographs for determination of the periodontal ligament in a variable phantom

Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Feb;109(2):e95-101. doi: 10.1016/j.tripleo.2009.10.023.

Authors

Pia-Merete Jervøe-Storm¹, Martin Hagner, Jörg Neugebauer, Lutz Ritter, Joachim E Zöller, Søren Jepsen, Matthias Frentzen

Affiliation

¹ Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany. storm@uni-bonn.de

PMID: 20123402
DOI: 10.1016/j.tripleo.2009.10.023

Abstract

Objectives: This in vitro study assessed the visualization quality of the periodontal ligament space in cone-beam computerized tomography (CBCT) compared with intraoral radiographs (CR).

Study design: A phantom mimicking variable periodontal ligament spaces (0-0.42 mm) was radiographed using CBCT and CR. Fifteen datasets of each modality were randomly mixed and presented twice to 19 experienced examiners and once to 19 inexperienced examiners.

Results: Zero-millimeter gaps were recognized in 84.4% of CBCT and in 81.6% of CR images. On CBCT scans, gaps of 0.19 mm were identified with an accuracy of 93%-100% compared with 70.2%-81.7% using CR. Experienced examiners recognized gaps of >or=0.19 mm on CBCT repeatedly with nearly 100% accuracy.

Conclusion: Compared with CR, CBCT provides better visualization of simulated periodontal ligament space in this phantom.

Publication types

Comparative Study
Evaluation Study

MeSH terms

Chi-Square Distribution
Cone-Beam Computed Tomography*
Humans
Periodontal Ligament / diagnostic imaging*
Phantoms, Imaging*
Radiography, Dental / methods*