Association between Amalgam Tooth Fillings and Blood Mercury Levels in Children
- Association between Amalgam Tooth Fillings and Blood Mercury Levels in Children
- 사공준; 최연희[최연희]; 정선영[정선영]; 권호장[권호장]; Wilfried Karmaus[Wilfried Karmaus]; Anwar T. Merchant[Anwar T. Merchant]; 하미나[하미나]; 홍윤철[홍윤철]; 강동묵[강동묵]; 송근배[송근배]
- amalgam; blood; child; mercury; South Kore
- Issue Date
- International Journal of Oral Biology, v.36, no.3, pp.123 - 128
- The notion that dental amalgam is a potential source of mercury exposure remains a controversial issue. However,there are few epidemiological analyses that have addressed whether this occurs in children. We aimed in our current study to identify the relationship between dental amalgam filling surfaces and the blood mercury levels in a cohort of 711South Korean children aged between 8-9 years. Oral examinations were conducted to detect the number of amalgam filling surfaces on the teeth of these individuals.
Blood samples were also taken from these children to assess the levels of mercury accumulation in the body. The amalgam filling surfaces were classified into four groups based on their number: 0 (n = 368), 1-5 (n = 219), 6-10 (n = 89), and 11+ (n =35). The blood mercury levels in the children with more than 10 amalgam surfaces was 0.47 μg/L higher on average than those with no amalgam surfaces after adjusting for the frequency of fish or seafood consumption, age, and gender (P < 0.05). We found from our data that a higher number of dental amalgam fillings correlated with a higher blood mercury level in Korean children. Further studies are needed to investigate whether these elevated mercury levels exert neurotoxic or nephrotoxic effects.
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