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Radiation Protection Dosimetry Advance Access originally published online on August 12, 2006
Radiation Protection Dosimetry 2007 123(1):131-134; doi:10.1093/rpd/ncl090
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© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

TECHNICAL NOTES

Dose-area product measurements in panoramic dental radiology

B. Poppe1,2,*, H. K. Looe1,2, A. Pfaffenberger1,2, N. Chofor1,2, F. Eenboom1,2, M. Sering3, A. Rühmann2, A. Poplawski2 and K. Willborn2

1 Medical Radiation Physics Working Group, Carl von Ossietzky University Oldenburg, 26111 Oldenburg, Germany
2 Clinic of Radiotherapy and Oncology, Pius-Hospital, Georgstrasse 12, 26121 Oldenburg, Germany
3 Öko-Institut e.V., Darmstadt Office, Nuclear Engineering and Plant Safety Division, Rheinstrasse 95, 64295 Darmstadt, Germany

* Corresponding author: bjoern.poppe{at}uni-oldenburg.de

Received March 9, 2006, amended June 2, 2006, accepted June 4, 2006


  Abstract

In this study, dose-area product (DAP) measurements in panoramic dental radiology have been performed in Germany. The results obtained in this study were proposed as diagnostic reference levels (DRLs). A representative number of dental panoramic units, both with digital and conventional image receptors, have been chosen. Common statistical parameters such as mean, standard deviation and 3rd quartile have been calculated. For four different standard programmes, ‘large adult’, ‘adult male’, ‘adult female’ and ‘child’, the proposed DRLs are 101, 87, 84 and 75 mGy cm2, respectively. No clear tendency to a generalised dose reduction from the transition to digital techniques has been observed. Effective doses have been calculated from E/DAP conversion factors published in literature. Even though these values differ by a factor of ~3, upper limits of 15.8–21.2 µSv for the four different exposure settings were derived from the data.


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