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Radiation Protection Dosimetry Advance Access published online on July 20, 2004
Radiation Protection Dosimetry, doi:10.1093/rpd/nch341
Copyright © 2004 Oxford University Press.
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Received February 25, 2004
Revised May 17, 2004
Accepted May 18, 2004

SCIENTIFIC AND TECHNICAL PAPER

DOSE AREA PRODUCT REFERENCE LEVELS IN DENTAL PANORAMIC RADIOLOGY

Christine E. Tierris 1*, Emmanuel N. Yakoumakis 2, George N. Bramis 2, Evangelos Georgiou 2

1 Medical Physicist, 251 Airforce General Hospital of Athens, P. Kanellopoulou 3, Athens, Greece
2 University of Athens Medical School, Department of Medical Physics, 75 Mikras Asias Street Goudi, 115 27 Athens, Greece

* To whom correspondence should be addressed. E-mail: tierri{at}otenet.gr.


  Abstract

The purpose of this study was to measure DAP (Dose Area Product) values in panoramic radiology with the use of a DAP meter, to determine corresponding reference levels, and to compare DAP between panoramic and intraoral radiology. DAP was measured in 62 panoramic X-ray units for 3 types of exposure (male, female and child) and in 20 intraoral X-ray units of 50, 60 and 70 kVp. DAP reference levels were 117 mGy cm2, 97 mGy cm2 and 77 mGy cm2 for exposure of a male, female and child respectively. Results showed that DAP from a panoramic dental examination is approximately twice that from a single intraoral examination. DAP meter is a very convenient and easy to use tool for patient dosimetry and for the establishment of reference levels in dental panoramic radiology.


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