A Study of Fluoride Level in Hair and Urine of Preschool Children Using Fluoride Toothpaste / 上海第二医科大学学报

ABSTRACT

ObjectiveTo study the fluoride level of preschool children influenced by fluoride toothpaste. MethodsAbout 200 children aged 3～6 years old were involved in the test. The children of test group were given fluoride toothpaste while the children of control group were given non-fluoride toothpaste. After two months, hair samples were gasified by high temperature and were tested with fluoride-specific electrode. Urinary fluoride concentration and 24h urinary fluoride excretion were also conducted by using fluoride-specific electrode.ResultsIt shows that the 24h urinary fluoride excretion and the fluoride concentration in hair and urine of children in control group were apparently lower than those of children in test group.ConclusionFluoride toothpastes used by preschool children may result in the change of fluoride level in their bodies under the stability of their daily habits and living cir cumstances. Age is likely to be one of the facts that can influence the fluoride ingestion level.