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[Effects of different quantity of fluoride toothpaste on fluoride intake by preschool children]
Jing Zhou1, Xi-ping Feng, Yan-ling Liu
1Department of Preventive Dentistry, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China.
Objective:
This study was to investigate the influence of different quantity of fluoride toothpaste(1000 microg/g)on the intake level of fluoride among three children age groups of preschool children,to explore the rational and security quantity of fluoride toothpaste in preschool children.
Methods:
Urinary fluoride excretion of 24-hour urinary samples was measured by fluoride ion electrode among three age groups of preschool children,serving 24-hour urinary fluoride excretion before using fluoride toothpaste as self-control.
Results:
There were statistically significant differences in 24-hour urinary fluoride excretion among four different quantity toothpastes (P<0.01),and among three age groups (P<0.05).
Conclusion:
Fluoride intake level was influenced by the accidental swallowing of fluoride toothpaste among preschool children. So children under 6-year-old should decrease quantity of fluoride toothpaste,no more than a small pea (about 0.25g).
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