Topical Fluoride: How Fluoride Works

Posted Dec 31st, 2018

Fluoride is a naturally-occurring mineral that helps strengthen tooth enamel and prevent cavities. Here, our Edmonton dentists explain how topical fluoride treatments work to protect your teeth.

How is fluoride good for teeth?

Your tooth enamel continuously goes through a demineralization and remineralization process.

Demineralization is the loss of minerals from the enamel. This happens when acids (formed by plaque and bacteria in the mouth) attack the enamel.

During remineralization, minerals like calcium, phosphate and fluoride are redeposited to the enamel when we drink water or eat certain mineral-rich foods.

When teeth aren’t sufficiently remineralized (if you don’t consume enough of the required minerals), tooth decay can result.

Fluoride, then, helps prevent tooth decay by making teeth more resistant to acid. In some cases, it can also help reverse decay that has already begun.

For children under six years old, fluoride becomes incorporated into the developing permanent teeth, making it difficult for acids to demineralize them.

Fluoride is most critical for infants and children between the ages of 6 months and 16 years, during which time the teeth are developing.

Fluoride Treatment At Your Dentist’s Office

Sometimes, fluoride consumed via water and food is not sufficient to protect the teeth, and in these cases, additional fluoride application is advisable.

While there are many over-the-counter fluoride toothpastes and mouthwashes, these contain relatively low levels of fluoride.

Stronger concentrations are available by prescription, and you dentist can also apply fluoride treatment in stronger concentrations at your dental clinic.

Fluoride treatment at your dental clinic will typically be a one-time application of a gel, foam, or varnish solution. Varnishes are painted on the teeth, while foams are put into a dental tray and then applied to the teeth for a few minutes. Gels can either be painted on or applied via a tray.

If you have questions about how fluoride works, please contact our Edmonton dentists today to book a consultation.

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