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International Journal of Dentistry
Volume 2012 (2012), Article ID 214954, 6 pages
http://dx.doi.org/10.1155/2012/214954
Research Article

Accuracy of Linear Measurements of Galileos Cone Beam Computed Tomography in Normal and Different Head Positions

1Department of Oral and Maxillofacial Radiology, Dental School, Isfahan University of Medical Sciences, 8174673461 Isfahan, Iran
2Dental Implant Research Center, Isfahan University of Medical Sciences, 8174673461 Isfahan, Iran

Received 10 April 2012; Accepted 4 June 2012

Academic Editor: Marcelo G. P. Cavalcanti

Copyright © 2012 Mahnaz Sheikhi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Introduction. The aim of this study was to determine the accuracy of linear measurements in dry human skulls in ideal position and different deviated positions of the skull. Methods. 6 dry human skulls were included in the study. Opaque markers were attached to alveolar bone. Buccolingual and mesiodistal distances and heights were measured in 5 different regions of either jaws using a digital caliper. Radiographic distances were measured in ideal, rotation, tilt, flexion, and extension positions of the skulls. The physical and radiographic measurements were compared to estimate linear measurement accuracy. Results. The mean difference between physical measurements and radiographic measurements was 0 . 0 5 ± 0 . 4 5 . There was a significant difference between physical measurements and radiographic measurements in ideal, rotation, tilt, and extension positions ( 𝑃 v a l u e < 0 . 0 5 ). Conclusions. The accuracy of measurements in GALILEOUS CBCT machine varies when the position of the skull deviates from ideal; however, the differences are not clinically significant.