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Writer's pictureLux Dental Inc

Understanding the Mechanism of Action of Topical Fluoride


What is fluoride?

Fluoride, an ionic form of the trace element fluorine, is a mineral present in natural water sources, often reaching them through leaching from soil and rocks into groundwater.

When used correctly under dental supervision or as part of community water fluoridation initiatives, fluoride proves to be a safe and efficient tool in preventing and managing dental cavities.


How is fluoride good for teeth?

The enamel of your teeth undergoes a constant process of demineralization and remineralization.

Demineralization refers to the depletion of minerals from the enamel, which occurs when acids (produced by plaque and bacteria in the mouth) attack the enamel.

During remineralization, minerals such as calcium, phosphate, and fluoride are reabsorbed into the enamel when we consume water or certain mineral-rich foods.

If teeth are not adequately remineralized (due to insufficient intake of essential minerals), it can lead to tooth decay.

Fluoride plays a role in preventing tooth decay by enhancing the resistance of teeth to acid. In some instances, it can even help reverse early stages of decay.

In children under six years old, fluoride becomes integrated into the developing permanent teeth, making them more resistant to demineralization caused by acids.


At what point is fluoride intake particularly crucial?

Exposure to fluoride is crucial for infants and children aged 6 months to 16 years as this is when their primary and permanent teeth are developing.

Nevertheless, adults can also reap the benefits of fluoride. The use of topical fluoride through toothpastes, mouth rinses, and fluoride treatments is just as essential in preventing tooth decay and promoting the strength of growing teeth.


Fluoride Treatment At Your Dentist’s Office

At times, the fluoride obtained from water and food may not be adequate for tooth protection. In such situations, it is recommended to consider additional fluoride application.

Although there are numerous fluoride toothpastes and mouthwashes available over the counter, they typically have low fluoride levels.

Higher concentrations of fluoride can be obtained through prescription, and your dentist can administer fluoride treatment with stronger concentrations at the dental clinic.


Need more information on the functioning of fluoride? Feel free to reach out to our dentists at Lux Dental.

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