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KMID : 0355420130370010025
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Journal of Korean Academy of Oral Health
2013 Volume.37 No. 1 p.25 ~ p.30
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A study on the correlation between urinary fluoride/creatinine ratio, fluoride concentration of drinking water, urine and fingernail in preschool children
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Kim Hee-Kyoung
Jung Se-Hwan
Lee Min-Sun
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Abstract
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Objectives: This study aimed to confirm the efficacy of the urinary fluoride concentration/creatinine ratio for monitoring fluorine intake in fluoridated and non-fluoridated communities. Methods: The correlations among the fluoride concentration in drinking water and that in the urine and fingernails of 52 preschool children (age, 60-72 months) from fluoridated and non-fluoridated communities were analyzed. Results: The urinary fluoride concentration/creatinine ratio had a relatively high correlation with the fluoride concentration in drinking water (Pearson’s correlation coefficient, 0.606; P<0.05). Further, this ratio was significantly positively correlated with the urinary fluoride concentration (Pearson’s correlation coefficient, 0.374; P<0.01). However, there was no significant correlation between this ratio and the fluoride concentration in fingernails (Pearson’s correlation coefficient, 0.145; P>0.05). Conclusions: The findings of this study suggest that the urinary fluoride concentration/creatinine ratio in children can be utilized as an index for monitoring excess fluoride intake in fluoridated communities.
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KEYWORD
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Fingernail fluoride concentration, Fluoridation, Fluoride monitoring, Urinary fluoride concentration, Urinary fluoride/creatinine ratio
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