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Updated: Jun 16, 2026
In situ Compressive Loading and Correlative Noninvasive Imaging of the Bone-periodontal Ligament-tooth Fibrous Joint
Published on: March 7, 2014
Comparison of cone-beam computerized tomography and intraoral radiographs for determination of the periodontal
Pia-Merete Jervøe-Storm1, Martin Hagner, Jörg Neugebauer
1Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany. storm@uni-bonn.de
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.
