Journal of Korean society of Dental Hygiene 2023 KCI Impact Factor : 0.8
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pISSN : 2287-1705 / eISSN : 2288-2294
- https://journal.kci.go.kr/jksdh
KJCKorea
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Association between dental X-ray exposure and the thyroid cancer risk: A meta-analysis of case–control studies
- Journal of Korean society of Dental Hygiene
- Abbr : J Korean Soc Dent Hyg
- 2020, 20(3), pp.269-279
- DOI : 10.13065/jksdh.20200025
- Publisher : Korean Society of Dental Hygiene
- Research Area : Medicine and Pharmacy > Dentistry
- Received : March 18, 2020
- Accepted : April 19, 2020
- Published : June 30, 2020
Su-Yeon Hwang 1, Kim Hae-Young 1, Sunmi Song 1, Eun-Sil Choi 2
1고려대학교
2Gangwon Public Health Policy Institute
Accredited
ABSTRACT
Objectives: Previous studies have reported inconsistent findings in the association between dental diagnostic X-ray exposure and thyroid cancer. This study was a meta-analysis of case–control studies evaluating the association between exposure to dental radiation and the thyroid cancer risk. Methods: We searched the PubMed and EMBASE databases to identify studies on dental radiation and thyroid cancer risks that were published up to September 2018. Quality of studies was assessed using the Newcastle–Ottawa scale. A fixed-effects model was used to estimate pooled odds ratios (ORs) and 95% confidence intervals (CIs) using STATA 14.0. Potential publication biases were evaluated using Egger's test and Begg's funnel plot. Results: From the literature search, we included six case–control studies in this meta-analysis. The meta-analysis using the fixed-effects model found that dental X-ray exposure was associated with 2.34 times increased risk for thyroid cancer (OR=2.34, 95% CI=1.79–3.21). There was no heterogeneity in the data (p=0.662, I2 =0%).
Egger's test showed that there was no publication bias (p=0.532). Conclusions: This meta-analysis confirmed the association of dental X-ray exposure and thyroid cancer risk. The current results underscore the importance of applying safety regulations at dental clinics to protect thyroid glands during dental radiography examinations.
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