J Korean Acad Oral Health.  2013 Mar;37(1):25-30. 10.11149/jkaoh.2013.37.1.25.

A study on the correlation between urinary fluoride/creatinine ratio, fluoride concentration of drinking water, urine and fingernail in preschool children

• Kim HK
• Lee MS
• Jung SH

• KMID: 2190844
• DOI: http://doi.org/10.11149/jkaoh.2013.37.1.25

Abstract

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.

Keyword

Fingernail fluoride concentration; Fluoridation; Fluoride monitoring; Urinary fluoride concentration; Urinary fluoride/creatinine ratio

MeSH Terms

Child
Child, Preschool
Drinking
Drinking Water
Fluoridation
Fluorides
Fluorine
Humans
Nails
Drinking Water
Fluorides
Fluorine