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http://dx.doi.org/10.5624/isd.20210091

Accuracy of virtual 3-dimensional cephalometric images constructed with 2-dimensional cephalograms using the biplanar radiography principle  

Lee, Jae-Seo (Department of Oral and Maxillofacial Radiology, School of Dentistry, Chonnam National University)
Kim, Sang-Rok (Department of Orthodontics, School of Dentistry, Chonnam National University)
Hwang, Hyeon-Shik (Department of Orthodontics, School of Dentistry, Chonnam National University)
Lee, Kyungmin Clara (Department of Orthodontics, School of Dentistry, Chonnam National University)
Publication Information
Imaging Science in Dentistry / v.51, no.4, 2021 , pp. 407-412 More about this Journal
Abstract
Purpose: The purpose of this study was to evaluate the accuracy of virtual 3-dimensional (3D) cephalograms constructed using the principle of biplanar radiography by comparing them with cone-beam computed tomography (CBCT) images. Materials and Methods: Thirty orthodontic patients were enrolled in this study. Frontal and lateral cephalograms were obtained with the use of a head posture aligner and reconstructed into 3D cephalograms using biplanar radiography software. Thirty-four measurements representing the height, width, depth, and oblique distance were computed in 3 dimensions, and compared with the measurements from the 3D images obtained by CBCT, using the paired t-test and Bland-Altman analysis. Results: Comparison of height, width, depth, and oblique measurements showed no statistically significant differences between the measurements obtained from 3D cephalograms and those from CBCT images (P>0.05). Bland-Altman plots also showed high agreement between the 3D cephalograms and CBCT images. Conclusion: Accurate 3D cephalograms can be constructed using the principle of biplanar radiography if frontal and lateral cephalograms can be obtained with a head posture aligner. Three-dimensional cephalograms generated using biplanar radiography can replace CBCT images taken for diagnostic purposes.
Keywords
Dental Digital Radiography; Cone-Beam Computed Tomography; Diagnostic Imaging;
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Times Cited By KSCI : 2  (Citation Analysis)
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