Your tooth enamel is in a constant, cyclical state of destruction and repair through the twin processes of demineralization and remineralization. Remineralization deposits minerals like calcium and fluoride into the tooth enamel, while demineralization involves bacteria or plaque generating acidic compounds that damage the teeth. Fluoride, which is found in US tap water as well as in many mouthwashes, toothpastes, supplements and dental supplies, helps make tooth enamel stronger and more resilient against acid. Fluoride is particularly important to children, but it can be very useful for adults’ teeth as well.

Key Takeaways:

• Demineralization is the loss of minerals in the teeth through plaque bacteria while remineralization adds those minerals back. Tooth decay occurs when demineralization is above remineralization.
• Fluoride can be obtained through food, water, fluoridated toothpastes and mouth rinses.
• Although fluoride intake is more important for children between 6 months and 16 years, adults also need it to prevent tooth decay.

“Fluoride helps prevent tooth decay by making the tooth more resistant to acid attacks from plaque bacteria and sugars in the mouth”

Read more: https://www.webmd.com/oral-health/guide/fluoride-treatment#1