Cone-Beam Computed Tomography and Radiographs in Dentistry: Aspects Related to Radiation Dose

Introduction. The aim of this study was to discuss the radiation doses associated with plain radiographs, cone-beam computed tomography (CBCT), and conventional computed tomography (CT) in dentistry, with a special focus on orthodontics. Methods. A systematic search for articles was realized by MEDL...

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Main Authors: Diego Coelho Lorenzoni, Ana Maria Bolognese, Daniela Gamba Garib, Fabio Ribeiro Guedes, Eduardo Franzotti Sant’Anna
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Dentistry
Online Access:http://dx.doi.org/10.1155/2012/813768
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author Diego Coelho Lorenzoni
Ana Maria Bolognese
Daniela Gamba Garib
Fabio Ribeiro Guedes
Eduardo Franzotti Sant’Anna
author_facet Diego Coelho Lorenzoni
Ana Maria Bolognese
Daniela Gamba Garib
Fabio Ribeiro Guedes
Eduardo Franzotti Sant’Anna
author_sort Diego Coelho Lorenzoni
collection DOAJ
description Introduction. The aim of this study was to discuss the radiation doses associated with plain radiographs, cone-beam computed tomography (CBCT), and conventional computed tomography (CT) in dentistry, with a special focus on orthodontics. Methods. A systematic search for articles was realized by MEDLINE from 1997–March 2011. Results. Twenty-seven articles met the established criteria. The data of these papers were grouped in a table and discussed. Conclusions. Increases in kV, mA, exposure time, and field of view (FOV) increase the radiation dose. The dose for CT is greater than other modalities. When the full-mouth series (FMX) is performed with round collimation, the orthodontic radiographs transmit higher dose than most of the large FOV CBCT, but it can be reduced if used rectangular collimation, showing lower effective dose than large FOV CBCT. Despite the image quality, the CBCT does not replace the FMX. In addition to the radiation dose, image quality and diagnostic needs should be strongly taken into account.
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issn 1687-8728
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language English
publishDate 2012-01-01
publisher Wiley
record_format Article
series International Journal of Dentistry
spelling doaj-art-a3abdb14bfa34ea3a0ff9870d766be592025-02-03T01:24:06ZengWileyInternational Journal of Dentistry1687-87281687-87362012-01-01201210.1155/2012/813768813768Cone-Beam Computed Tomography and Radiographs in Dentistry: Aspects Related to Radiation DoseDiego Coelho Lorenzoni0Ana Maria Bolognese1Daniela Gamba Garib2Fabio Ribeiro Guedes3Eduardo Franzotti Sant’Anna4Department of Orthodontics, Federal University of Rio de Janeiro Dental School, Avenida Professor Rodolpho de Paulo Rocco, Ilha do Fundão 21941-590, Rio de Janeiro, RJ, BrazilDepartment of Orthodontics, Federal University of Rio de Janeiro Dental School, Avenida Professor Rodolpho de Paulo Rocco, Ilha do Fundão 21941-590, Rio de Janeiro, RJ, BrazilDepartment of Orthodontics, Bauru Dental School and Hospital of Rehabilitation of Craniofacial Anomalies, Universtity of São Paulo, 17012-101 Bauru, SP, BrazilDepartment of Dental Radiology, Federal University of Rio de Janeiro Dental School, 21941-590 Rio de Janeiro, RJ, BrazilDepartment of Orthodontics, Federal University of Rio de Janeiro Dental School, Avenida Professor Rodolpho de Paulo Rocco, Ilha do Fundão 21941-590, Rio de Janeiro, RJ, BrazilIntroduction. The aim of this study was to discuss the radiation doses associated with plain radiographs, cone-beam computed tomography (CBCT), and conventional computed tomography (CT) in dentistry, with a special focus on orthodontics. Methods. A systematic search for articles was realized by MEDLINE from 1997–March 2011. Results. Twenty-seven articles met the established criteria. The data of these papers were grouped in a table and discussed. Conclusions. Increases in kV, mA, exposure time, and field of view (FOV) increase the radiation dose. The dose for CT is greater than other modalities. When the full-mouth series (FMX) is performed with round collimation, the orthodontic radiographs transmit higher dose than most of the large FOV CBCT, but it can be reduced if used rectangular collimation, showing lower effective dose than large FOV CBCT. Despite the image quality, the CBCT does not replace the FMX. In addition to the radiation dose, image quality and diagnostic needs should be strongly taken into account.http://dx.doi.org/10.1155/2012/813768
spellingShingle Diego Coelho Lorenzoni
Ana Maria Bolognese
Daniela Gamba Garib
Fabio Ribeiro Guedes
Eduardo Franzotti Sant’Anna
Cone-Beam Computed Tomography and Radiographs in Dentistry: Aspects Related to Radiation Dose
International Journal of Dentistry
title Cone-Beam Computed Tomography and Radiographs in Dentistry: Aspects Related to Radiation Dose
title_full Cone-Beam Computed Tomography and Radiographs in Dentistry: Aspects Related to Radiation Dose
title_fullStr Cone-Beam Computed Tomography and Radiographs in Dentistry: Aspects Related to Radiation Dose
title_full_unstemmed Cone-Beam Computed Tomography and Radiographs in Dentistry: Aspects Related to Radiation Dose
title_short Cone-Beam Computed Tomography and Radiographs in Dentistry: Aspects Related to Radiation Dose
title_sort cone beam computed tomography and radiographs in dentistry aspects related to radiation dose
url http://dx.doi.org/10.1155/2012/813768
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