Journal of Yeungnam Medical Science

영남대 의대 학술지 편집위원회 (Yeungnam University College of Medicine, Yeungnam University Institute Medical Science)
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Association between dental amalgam restoration and urine mercury concentrations among young women: a cross-sectional study

  • Su-Bin Park (Department of Public Health, Graduate School of Environment and Public Health Studies, Yeungnam University) ;
  • Eun-Kyong Kim (Department of Dental Hygiene, College of Science and Technology, Kyungpook National University) ;
  • Joon Sakong (Department of Preventive Medicine and Public Health, Yeungnam University College of Medicine) ;
  • Eun Young Park (Department of Dentistry, Yeungnam University College of Medicine)
  • 투고 : 2022.12.26
  • 심사 : 2023.01.25
  • 발행 : 2023.10.31
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초록

Background: The association between dental amalgam fillings and urine mercury concentrations was investigated in this study to assess the health risks associated with dental amalgams. Methods: This cross-sectional study included 99 women in their 20s who visited the dental clinic in Daegu, Korea. The 99 participants were composed of 68 subjects who had dental amalgam fillings (exposure group) and 31 subjects who did not have dental amalgam fillings (nonexposure group). Oral examinations were conducted by a single dental hygienist, sociodemographic features were investigated as confounding variables, and urine mercury concentrations were measured using an automatic mercury analyzer. Results: The mean±standard deviation of the urine mercury concentrations of the exposure and nonexposure groups were 1.50±1.78 ㎍/g creatinine and 0.53±0.63 ㎍/g creatinine, respectively. The exposure group showed significantly higher levels than the nonexposure group (p<0.01). The urine mercury concentration significantly increased with an increase in the number of teeth filled with amalgam, cavity surfaces involved, and number of defective amalgam fillings, and according to the latest exposure time (p<0.001). In the multiple regression analysis of amalgam-related factors and urine mercury concentrations after correction for confounding factors, the urine mercury concentration in the group with six or more amalgam-filled teeth, 11 or more cavity surfaces, and two or more defective amalgams was significantly higher than that in the nonexposure group (p<0.001). Conclusion: According to this study, exposure to dental amalgams was confirmed to significantly affect urine mercury concentrations.

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참고문헌

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