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Environ Health Toxicol > Volume 33:2018 > Article
Environmental Health and Toxicology 2018;33(4):e2018017-0. doi: https://doi.org/10.5620/eht.e2018017
Health effects from exposure to dental diagnostic X-ray
Su-Yeon Hwang1, Eun-Sil Choi1, Young-Sun Kim1, Bo-Eun Gim2, Mina Ha3, Hae-Young Kim1,4
1Department of Public Health Sciences, Graduate School, Korea University, Seoul, Korea
2Expert Group on Health Promotion for Seoul Metropolitan Government, Seoul, Korea
3Department of Preventive Medicine, Dankook University College of Medicine, Cheonan, Korea
4Department of Health Policy and Management, College of Health Science, Korea University, Seoul, Korea
Corresponding Author: Hae-Young Kim ,Email: kimhaey@korea.ac.kr
Received: March 5, 2018;  Accepted: July 4, 2018.
The purpose of this review is to summarize the results of studies on of the association between exposure to dental X-rays and health risk. 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 each study. The final 21 studies were selected after application of exclusion criteria. In terms of health outcomes, there were 10 studies about brain tumors, 5 about thyroid cancer, 3 about tumors of head and neck areas, and 3 related to systemic health. In brain tumor 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 with dental diagnostic X-rays. In studies on head and neck areas, tumors 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. 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 elaborate these associations further.
Keywords: Dental radiography, Health, Radiation exposure
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