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The changing patterns of systemic fluoride intake.

B A Burt1

  • 1School of Public Health, University of Michigan, Ann Arbor 48109-2029.

Journal of Dental Research
|May 1, 1992
PubMed
Summary
This summary is machine-generated.

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Fluorosis prevalence may be increasing in North America. This review examines fluoride intake from supplements, toothpaste, and food, suggesting potential overexposure in children and the need for revised supplementation guidelines.

Area of Science:

  • Public Health
  • Dental Health
  • Environmental Health

Background:

  • Fluorosis prevalence has seen an uptick in North America since the mid-20th century.
  • Evidence suggests a potential, though less clear, increase in fluorosis since 1970.
  • Continued monitoring is crucial to ascertain if increased fluorosis in US children represents a 1970s cohort effect.

Purpose of the Study:

  • To review evidence for increased fluoride ingestion from all sources since the 1970s.
  • To identify potential sources contributing to elevated fluoride intake.
  • To address public health implications regarding fluoride supplementation and dietary intake.

Main Methods:

  • Review of existing literature and dietary survey data.
  • Analysis of fluoride intake from various sources including supplements, toothpaste, food, and beverages.

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  • Assessment of fluoride intake trends in adults and children (6 months to 2 years).

    • Main Results:

    • No clear evidence of increased fluoride intake in adults over the last generation.
    • Dietary surveys for young children are inconclusive, possibly due to variations in infant food fluoride content.
    • Many children approach the suggested upper fluoride intake limit through food, drinks, and toothpaste.

    Conclusions:

    • While conclusive evidence of increased fluoride ingestion since the 1970s is limited, many children are nearing recommended intake limits.
    • There is a need to reconsider fluoride supplementation schedules.
    • Public health education is required regarding the high fluoride content in certain beverages and processed fruit juices.