Comparison between conventional and cone-beam computed tomography–generated cephalograms

Introduction Cone-beam computed tomography (CBCT) is becoming established as an alternative and, in many aspects, superior radiographic technique to conventional radiography in orthodontics. However, cephalometric analysis is still an important tool in relation to treatment planning because 3-dimens...

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Bibliographic Details
Published in:American journal of orthodontics and dentofacial orthopedics 2008-12, Vol.134 (6), p.798-802
Main Authors: Cattaneo, Paolo M, Bloch, Christian Borgkvist, Calmar, Dorte, Hjortshøj, Mette, Melsen, Birte
Format: Article
Language:English
Subjects:
Algorithms
Biological and medical sciences
Cephalometry - methods
Chin - anatomy & histology
Cone-Beam Computed Tomography - methods
Dental Occlusion
Dentistry
Female
Humans
Image Processing, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
Incisor - anatomy & histology
Male
Mandible - anatomy & histology
Maxilla - anatomy & histology
Medical sciences
Nasal Bone - anatomy & histology
Observer Variation
Otorhinolaryngology. Stomatology
Sella Turcica - anatomy & histology
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Summary:Introduction Cone-beam computed tomography (CBCT) is becoming established as an alternative and, in many aspects, superior radiographic technique to conventional radiography in orthodontics. However, cephalometric analysis is still an important tool in relation to treatment planning because 3-dimensional analyses are still not established. The aim of this study was to compare cephalometric measurements performed on conventional cephalograms with those on CBCT-synthesized images. Methods Three observers digitized landmarks used for the Björk analysis on conventional lateral cephalograms and on 2 sets of CBCT-synthesized cephalograms (MIP and RayCast) from 34 patients. Results The calculated measurements did not differ between the 3 image techniques. The RayCast technique proved to be more reproducible than the MIP. Conclusions CBCT-synthesized cephalograms can successfully replace conventional headfilms.
ISSN:0889-5406
1097-6752
DOI:10.1016/j.ajodo.2008.07.008