Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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A Study of Radiation Dose Evaluation and Optimization Methods for Intra Oral Dental X-ray in Pediatric Patient

소아 구내촬영 시 방사선량 평가 및 최적화 방안에 대한 연구

  • Lee, Hyun-Yong (Department of Radiological Science, College of Health Sciences, Catholic University of Pusan) ;
  • Cho, Yong-In (Department of Radiology, Dongnam Institute of Radiological & Medical Sciences Cancer center)
  • 이현용 (부산가톨릭대학교 보건과학대학 방사선학과) ;
  • 조용인 (동남권원자력의학원 영상의학과)
  • Received : 2021.06.16
  • Accepted : 2021.06.28
  • Published : 2021.06.30
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Abstract

Although intra oral dental x-ray is a lower dose than other radiological examinations, pediatric patients are known to have a higher risk of radiation damage than adults. For this reason, pediatric dental x-ray requires management of dose evaluation and imaging conditions during the examination. In this study, the dose calculation program ALARA-Dental(child/adult) was used to evaluate the organ dose and effective dose exposed to each examination site during intra oral imaging of children during dental radiographic examination, and dose analysis according to the imaging conditions was performed. As a result, the highest organ dose distribution was shown at 0.044 ~ 0.097 mGy in all are as of the mucous membrane of oral cavity except for the maxillary incisors and canines. Also, in the case of the thyroid gland, the maxillary canine and maxillary premolar examination showed 0.027 and 0.020 mGy, respectively, and the dose distribution was 15.4% to 70.0% higher than that of the mandibular examination. As for the effective dose calculated during intra oral imaging, the maxillary anterior and canine examinations showed the highest effective doses of 0.005 and 0.004 mSv, respectively, and the maxillary area examination showed a higher dose distribution on average than the mandible.

Keywords

Acknowledgement

This paper was supported by RESEARCH FUND offered from Catholic University of Pusan in 2021.

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