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KMID : 0357520110340010027
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Journal of Radiological Science and Technology
2011 Volume.34 No. 1 p.27 ~ p.33
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Evaluation of Effective Dose in Dental Radiography
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Han Su-Chul
Lee Bo-Ram
Shin Gwi-Soon
Choi Jong-Hak
Park Hyeuk
Park Chang-Seo
Chang Kye-Yong
Kim Bo-Ram
Kim You-Hyun
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Abstract
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Along with the developments of science technology, up-to-date medical radiation equipments are introduced. Those equipments has brought many progresses in diagnosing patients not only in the quantitative aspects but in the qualitative ones. Especially, in the case of dental radiography, patients can be exposed more than CT, cone beam computed tomography (CBCT). In this study, we used human phantom and TLD-100H to measure the organ dose in each dental radiography and computed the effective dose according to ICRP (International Committee for Radioactivity Prevention) 60, 103. We measured the effective dose to be 5.1 and in the panoramic radiography and 11.2 and in the cephalometric radiography respectively. We also executed the CBCT and CT test on the maxillaries and the mandibles and found the amounts of effective dose were 53.7, 209.6, 129, and respectively in the CBCT and , 139.5, 282.7 and in the CT test. Consequently, it was shown that the effective dose in the CBCT test was lower than one in the CT test, but was higher in both panoramic and cephalometric radiography.
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KEYWORD
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Dental radiography, Effective dose, ICRP 60, 103, Dose reduction
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