Skip to main content
Subscribe

The role of fluoride

Last Updated December 2021

 Sodium Fluoride is a naturally occurring mineral that serves to protect teeth from dental caries. 

It is scientifically proven that the correct amount of fluoride in water and use of fluoride-containing toothpastes and mouth rinses have a significant benefit on oral health and help to reduce tooth decay.

Fluoride helps promote remineralisation of the tooth surface.

Fluoride ions are taken up into the enamel and form fluoroapatite which is harder than hydroxyapatite. Thus, fluoride strengthens the enamel which is then more resistant to acid attacks and the incidence of dental caries is reduced.

CAVITIES & STRONG TEETH: FREQUENTLY ASKED QUESTIONS

Fluoride is a naturally occurring element known to prevent tooth decay, thereby helping prevent cavities developing. The acid in plaque leads to mineral loss in the tooth (demineralisation), which leads to tooth decay. The formation of cavities, however, can be prevented by remineralisation. Fluoride can speed up this restoration of lost minerals.

Fluoride is often found in tap water, in high enough quantities to reduce cavities, depending on which area of the country you are in (and whether you drink tap or filtered/bottled water). You can also get fluoride by using a fluoride toothpaste and LISTERINE® mouthwashes that contain fluoride.

Related Articles

Your Mouth At Night

Read more

Importance of Minerals for Strong Teeth

Read more

Importance of A Full Mouth Clean

Read more

Quick Links
  • Products
  • The importance of mouthwash
  • How to use mouthwash
About Listerine
  • History of LISTERINE®
  • Our four essential oils
  • Contact Us
Useful Information
  • FAQ
  • Sitemap
  • Privacy Notice
  • Legal Notice
  • Modern Slavery Act Statement
  • Product Review Policy

We may match data about you which we may already know with data that our advertising partners may gather about you when you use other websites or other applications on the internet to generate a profile and thus provide you with advertising better suited to your individual interests.

© Kenvue UK Limited, 2025

This site is published by Kenvue UK Limited which is solely responsible for its contents. It is intended for a UK audience.

Site last updated on: 31 March 2025

UKI-LI-2000069

Listerine