[Effects of different quantity of fluoride toothpaste on fluoride intake by preschool children].
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).


CONCLUSIONS
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).
Department of Preventive Dentistry, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China.
Jing
J
Zhou
Xi-ping
XP
Feng
Yan-ling
YL
Liu