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Environmental Health and Toxicology 2019;e2019002. doi: https://doi.org/10.5620/eht.e2019002    [Accepted]
Health effects from exposure to dental diagnostic X-ray: A review article
Hae-Young Kim1,2 , Su-Yeon Hwang2, Eun-Sil Choi2, Young-Sun Kim2, Bo-Eun Gim3, Mi-na Ha4
1Department of Health Policy and Management, College of Health Science, Korea University, Seoul, Korea
2Department of Public Health Sciences, Graduate School, Korea University, Seoul, Korea
3Expert Group on Health Promotion for Seoul Metropolitan Government, Seoul, Korea
4Department of Preventive Medicine, Dankook University College of Medicine, Cheonan, Korea
Corresponding Author: Hae-Young Kim ,Tel: 82-2-3290-5667, Fax: 82-2-940-2879, Email: kimhaey@korea.ac.kr
Received: March 5, 2018;  Accepted: July 4, 2018.
Objective:The purpose of this review is to summarize the results of an investigation of the association between exposure to dental X-rays and health risk.Methods:To perform the systematic review, We searched the PUBMED, EMBASE, and MEDLINE databases for papers published before December 15, 2016. A total of 2,158 studies, excluding duplicate studies, were found. Two reviewers independently evaluated the eligibility of all studies. The final 21 studies were selected after application of exclusion criteria.Results:In terms of health outcomes, there were 10 studies about brain tumors, 5 about thyroid cancer, 3 about head and neck areas, and 3 related to systemic health. In brain-related studies, the association between dental X-ray exposure and meningioma was statistically significant in 5 of the 7 studies. In 4 of the 5 thyroid-related studies, there was a significant correlation between dental diagnostic X-rays and thyroid cancer. In studies related to head and neck areas, health outcomes included laryngeal, parotid gland, and salivary gland cancers. There was also a statistically significant correlation between full-mouth X-rays and salivary gland cancer, but not parotid gland cancer. Health outcomes such as leukemia, low birth weight, cataracts, and thumb carcinomas were also reported.Conclusion:In a few studies examining health effects related to dental X-ray exposure, possibly increased risks of meningioma and thyroid cancer were suggested. More studies with a large population and prospective design are needed to study these associations further.
Keywords: Dental radiography; Health; Radiation exposure
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Health effects from exposure to dental diagnostic X-ray  2018 December;33(4)
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