Effects and Sources of Fluoride
Use of fluoride, both through dietary and topical applications, has led to dramatic drops in caries rates.
How Does Fluoride Help Prevent Dental Caries?
Through topical mechanisms, the main effect, fluoride works by:
- Inhibiting tooth demineralization
- Enhancing remineralization
- Inhibiting bacterial metabolism
Through systemic mechanisms, the lesser effect, fluoride works by:
- Reducing enamel solubility through incorporation into its structure during tooth development
What Are the Primary Sources of Fluoride?
Systemic Fluoride is obtained through:
- Water fluoridation
- Dietary fluoride supplements
Topical Fluoride is the most beneficial and is obtained through:
- Fluoride toothpastes
- Gels, foams, mouthwashes
- Fluoride varnish
References
Weyant RJ, Tracy SL, Anselmo TT et al. Topical fluoride for caries prevention: executive summary of the updated clinical recommendations and supporting systematic review. American Dental Association Council on Scientific Affairs Expert Panel on Topical Fluoride Caries Preventive Agents. J Am Dent Assoc. 2013. 144(11):1279-91.