Browse > Article

Facial Exposure Dose Assessment During Intraoral Radiography by Radiological Technologists  

Yu, Hwan (Department of International Radiological Science, Hallym University of Graduate Studies)
Yang, Hanjoon (Department of International Radiological Science, Hallym University of Graduate Studies)
Publication Information
Journal of radiological science and technology / v.37, no.3, 2014 , pp. 195-201 More about this Journal
Abstract
The study examined the changes in the decreased facial exposure dose for radiological technologists depending on increased distance between the workers and the X-ray tube head during intraoral radiography. First, the facial phantom similar to the human tissues was manufactured. The shooting examination was configured to the maxillary molars for adults (60kVp, 10mA, 50msec) and for children (60kVp, 10mA, 20msec), and the chamber was fixed where the facial part of the radiation worker would be placed using the intraoral radiography equipment. The distances between the X-ray tube head and the phantom were set to 10cm, 15cm, 20cm, 25cm, 30cm, 35cm, and 40cm. The phantom was radiated 20 times with each examination condition and the average scattered doses were examined. The rate at the distance of 40cm decreased by about 92.6% to 7.43% based on the scattered rays radiated at the distance of 10cm under the adult conditions. The rate at the distance of 40cm decreased by about 97.6% to 2.58% based on the scattered rays radiated at the distance of 10cm under the children conditions. Protection from the radiation exposure was required during the dental radiographic examination.
Keywords
Intraoral radiography; exposure dose; distance;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Lim HS: Health Disorders Caused by Physical Factors among Health Care Workers - Focusing on Ionizing Radiation -, J Korean Med Assoc, 53, 483-491, 2010   DOI
2 Jeong GH, Lee HK, Cho WK et al.: Caregiver or Family Doses due to Discharged 131I Administrated Patient from the Hospital, Journal of radiological science and technology, 33, 149-154, 2010
3 Jeong TS, Shin BC, Moon CW et al.: The Analysis of radiation exposure of hospital radiologic technologists, Korean Soc Ther Radiol Oncol, 18, 157-166, 2000
4 Lee BD: Review of Radiographic Selection Criteria, Journal of Korean Dental Association, 51, 39-45, 2013
5 Price JB, Thaw KL, Tyndall DA et al.: ncidental findings from cone beam computed tomography of the maxillofacial region: a descriptive retrospective study, Clin Oral Implants Res., 23, 1261-8, 2012   DOI   ScienceOn
6 Fryback DG, Thornbury JR: The efficacy of diagnostic imaging, Med Decis Making, 11, 88-94, 1991   DOI
7 An SY, An CH, Choi KS: Efficacy of panoramic radiography as a screening procedure in dental examination compared with clinical evaluation, Korean J Oral Maxillofac Radiol, 37, 83-6, 2007
8 Memon A, Godward S, Williams D et al.: Dental x-rays and the risk of thyroid cancer: a case-control study, Acta Oncol., 49, 447-53, 2010   DOI   ScienceOn
9 Claus EB, Calvocoressi L, Bondy ML et al.: Dental x-rays and risk of meningioma, Cancer. 118, 4530-7, 2012   DOI   ScienceOn
10 Ludlow JB: The Risks of Radiographic imaging, Dimensions of Dental Hygiene, 10, 59-61, 2012
11 ICRP 60: 1990 Recommendations of the International Commission on Radiological Protection, Ann ICRP 60, 1991
12 ICRP 20: Alkaline Earth Metabolism in Adult Man, Ann ICRP 20, 1973
13 Cho JY, Han WJ, Kim EK et al.: Absorbed and effective dose from periapicalradiography by portable intraoral x-ray machine. Korean J Oral Maxillofac Radiol, 37, 149-156, 2007
14 Hatziioannou K, Psarouli E, Papanastassiou E et al.: Quality control and diagnostic reference levels in intraoral dental radiographic facilities, Dentomaxillofac Radiol., 34, 304-7, 2005   DOI   ScienceOn
15 Underhill TE, Chilvarquer I, Kimura K et al.: Radiobiologic risk estimation from dental radiology. Part I. absorbed doses to critical organs, Oral Surg Oral Med Oral Pathol, 66, 111-20, 1988   DOI   ScienceOn
16 Avendanio B, Fredericksen NL, Benson BW et al.: Effective dose and risk assessment from detailed narrow beam radiography, Oral Surg Oral Med Oral Pathol Oral Radiol Endod., 82, 713-9, 1996   DOI   ScienceOn
17 Lim CH, Kim SC, Jung HY et al.: The Study for Radio Protection According to a Possible Danger of Exposure During dental X-ray Examination J Kor Soc Radio., 5, 237-244, 2011   DOI   ScienceOn
18 Park EC, Kim JD: A Study on the Scatter Radiation Affecting the Dental X-ray Film. Korean J Oral Maxillofac Radiol, 22, 41-55, 1992