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Radiation dose from X-ray examinations of impacted canines : Cone beam CT vs two-dimensional imaging

Kadesjö, Nils; Lynds, Randi; Nilsson, Mats LU and Shi, Xie Qi (2018) In Dentomaxillofacial Radiology 47(3).
Abstract

Objectives: To compare the radiation dose to children examined for impacted canines, using two-dimensional (2D) examinations (panoramic and periapical radiographs) and cone beam CT (CBCT). Methods: Organ doses were determined using an anthropomorphic 10-year-old child phantom. Two CBCT devices, a ProMax3D and a NewTom5G, were examined using thermoluminescent dosimeters. For the panoramic radiograph, a Promax device was used and for periapical radiographs, a Prostyle device with a ProSensor digital sensor was used. Both the panoramic and the intraoral devices were examined using Gafchromic-QR2 dosimetric film placed between the phantom slices. Results: ProMax3D and NewTom5G resulted in an effective dose of 88 μSv and 170 μSv... (More)

Objectives: To compare the radiation dose to children examined for impacted canines, using two-dimensional (2D) examinations (panoramic and periapical radiographs) and cone beam CT (CBCT). Methods: Organ doses were determined using an anthropomorphic 10-year-old child phantom. Two CBCT devices, a ProMax3D and a NewTom5G, were examined using thermoluminescent dosimeters. For the panoramic radiograph, a Promax device was used and for periapical radiographs, a Prostyle device with a ProSensor digital sensor was used. Both the panoramic and the intraoral devices were examined using Gafchromic-QR2 dosimetric film placed between the phantom slices. Results: ProMax3D and NewTom5G resulted in an effective dose of 88 μSv and 170 μSv respectively. A panoramic radiograph resulted in an effective dose of 4.1 μSv, while a periapical radiograph resulted in an effective dose of 0.6 μSv and 0.7 μSv using a maxillary lateral projection and central maxillary incisor projection respectively. Conclusions: The effective dose from CBCT ranged from 140 times higher dose (NewTom5G compared to two periapical radiographs) to 15 times higher dose (ProMax3D compared to three periapical and one panoramic radiograph) than a 2D examination.

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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CBCT, Effective dose, Impacted canine, Intraoral X-ray, Panoramic X-ray
in
Dentomaxillofacial Radiology
volume
47
issue
3
publisher
British Institute of Radiology
external identifiers
  • scopus:85042628325
ISSN
0250-832X
DOI
10.1259/dmfr.20170305
language
English
LU publication?
no
id
719889d4-e876-4aae-88a5-52209dd692ab
date added to LUP
2018-03-09 10:17:22
date last changed
2018-05-29 12:20:22
@article{719889d4-e876-4aae-88a5-52209dd692ab,
  abstract     = {<p>Objectives: To compare the radiation dose to children examined for impacted canines, using two-dimensional (2D) examinations (panoramic and periapical radiographs) and cone beam CT (CBCT). Methods: Organ doses were determined using an anthropomorphic 10-year-old child phantom. Two CBCT devices, a ProMax3D and a NewTom5G, were examined using thermoluminescent dosimeters. For the panoramic radiograph, a Promax device was used and for periapical radiographs, a Prostyle device with a ProSensor digital sensor was used. Both the panoramic and the intraoral devices were examined using Gafchromic-QR2 dosimetric film placed between the phantom slices. Results: ProMax3D and NewTom5G resulted in an effective dose of 88 μSv and 170 μSv respectively. A panoramic radiograph resulted in an effective dose of 4.1 μSv, while a periapical radiograph resulted in an effective dose of 0.6 μSv and 0.7 μSv using a maxillary lateral projection and central maxillary incisor projection respectively. Conclusions: The effective dose from CBCT ranged from 140 times higher dose (NewTom5G compared to two periapical radiographs) to 15 times higher dose (ProMax3D compared to three periapical and one panoramic radiograph) than a 2D examination.</p>},
  articleno    = {20170305},
  author       = {Kadesjö, Nils and Lynds, Randi and Nilsson, Mats and Shi, Xie Qi},
  issn         = {0250-832X},
  keyword      = {CBCT,Effective dose,Impacted canine,Intraoral X-ray,Panoramic X-ray},
  language     = {eng},
  number       = {3},
  publisher    = {British Institute of Radiology},
  series       = {Dentomaxillofacial Radiology},
  title        = {Radiation dose from X-ray examinations of impacted canines : Cone beam CT vs two-dimensional imaging},
  url          = {http://dx.doi.org/10.1259/dmfr.20170305},
  volume       = {47},
  year         = {2018},
}