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[Fluoride, a preventive agent of caries: mechanisms, sources, risks]
Summary
Fluoride effectively prevents tooth decay by strengthening enamel and inhibiting bacteria. However, excessive intake can lead to dental fluorosis, necessitating careful monitoring of all fluoride sources.
Area of Science:
- Dental Public Health
- Cariology
- Mineral Metabolism
Context:
- Dental caries remains a significant global health issue.
- Fluoride is a cornerstone of caries prevention strategies.
- Understanding fluoride's mechanisms and sources is crucial for effective public health initiatives.
Purpose:
- To elucidate the dual action of fluoride in preventing dental caries.
- To identify the primary sources of systemic and local fluoride exposure.
- To highlight the importance of balanced fluoride intake for optimal dental health and prevention of fluorosis.
Summary:
- Fluoride exerts both local effects on enamel demineralization and bacterial activity, and systemic effects by forming fluorapatite, enhancing enamel resistance.
- Key sources include fluoridated water, salt, and medications, with a recommended daily intake of 0.05 mg/kg.
- Exceeding 1 mg/kg daily intake increases the risk of dental fluorosis, underscoring the need for practitioners to assess total fluoride exposure in children.
Impact:
- Provides a comprehensive overview of fluoride's role in caries prevention.
- Emphasizes the critical balance between fluoride benefits and the risk of dental fluorosis.
- Informs public health policies and clinical recommendations regarding fluoride supplementation.