Abstract
Data about total fluoride intake in children living in a tropical semi-arid climate city is scarce, thus we conducted this study. Fifty-eight children aged two to five years, living in a Brazilian tropical city with optimally fluoridated water were selected. Dietary samples were collected using the duplicate diet method on two non-consecutive days in the children's home toothpaste was determined by subtracting the amount of fluoride recovered after brushing from the amount placed on the toothbrush. The mean total dose (SD) of fluoride intake was 0.043(0.016) mg F·kg-1·d-1, with the major (60.6%) contribution from water. The factors associated with the ingestion of fluoride from toothpaste were fluoride concentration of the toothpaste (p = 0.03) and the use of kids toothpaste (p = 0.02). The findings suggest that children have a low fluoride intake, measured by at-home meals and use of fluoride toothpaste; drinking water is the main source of fluoride ingestion.
Highlights
Declaration of Interests: The authors certify that they have no commercial or associative interest that represents a conflict of interest in connection with the manuscript.Submitted: October 16, 2017 Accepted for publication: January 21, 2018 Last revision: February 23, 2018In recent decades, there has been a decline in the worldwide prevalence of dental caries in the population, which is associated with the use of fluorides.[1]
There has been a decline in the worldwide prevalence of dental caries in the population, which is associated with the use of fluorides.[1]
After analysis of the water used at home, 10 children were excluded as they drank mineral bottled water without fluoride
Summary
There has been a decline in the worldwide prevalence of dental caries in the population, which is associated with the use of fluorides.[1] Fluoridation of the public water supply and the use of fluoride toothpastes are the most important methods of fluoride delivery.[2,3] an increase in the prevalence of dental fluorosis due to the intake of multiple sources of fluoride during tooth formation has been observed.[4] Burt[5] empirically determined a fluoride intake dose considered safe: from 0.05 to 0.07 mg F/kg body weight/day. Some studies showed that children’s fluoride intake from diet (solid and liquid) in a subtropical region of Brazil with fluoridated water was not relevant, with doses of approximately 0.04 mg F/kg body weight/day.[6,7] Lima and Cury[7] reported that the amount of fluoride ingested during the hot season was 19% higher than during the cold season. Children are at risk of ingesting fluoride from other sources, such as toothpaste
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