Your dentist painted something on your teeth and told you not to eat for a few hours. That was fluoride varnish. It might have felt strange, but it was doing something important.

Fluoride varnish is a highly concentrated form of fluoride that your dentist paints directly onto your teeth. It sets quickly and stays on your teeth for several hours, releasing fluoride that strengthens your enamel.

Your enamel is the hard outer layer of your tooth. Every day, it loses minerals through a process called demineralisation. Fluoride helps reverse that process by helping your teeth absorb minerals like calcium and phosphate. This makes your enamel stronger and more resistant to acid attacks from food and drinks.

Many people think fluoride varnish is just for children. That is not true. Adults benefit from it too, especially if you have a history of cavities, gum recession, or sensitive teeth.

If you have exposed root surfaces, fluoride varnish can be particularly helpful. Root surfaces do not have the same protective enamel layer, so they decay more easily. Varnish gives them extra protection.

Your dentist might also recommend it if you have dry mouth, which reduces the saliva that naturally protects your teeth. Or if you have crowns, bridges, or braces, varnish helps protect the edges where your teeth meet restorations.

Children teeth are still developing, which makes them particularly vulnerable to decay. Fluoride varnish is safe and effective for kids, and dentists have been using it for decades.

For children who are at higher risk of cavities, varnish can be applied two to four times a year. It takes just a few minutes, and the application process is completely painless.

Your dentist or hygienist will clean your teeth first, then paint the varnish on with a small brush. It has a mild flavour, often something like honey or fruit.

It goes on yellow or clear and sets within seconds. You will be asked not to eat or drink for 30 minutes to 4 hours afterwards so the fluoride has time to work. Your teeth might feel slightly coated, but that fades quickly.

This depends on your personal risk of cavities. Some people benefit from applications every six months. Others with higher risk might need it more often, up to four times a year.

Your dentist will assess your individual needs and recommend a schedule that makes sense for you.

Yes. Fluoride varnish is extremely safe. The amount of fluoride used is far lower than what you would find in a typical tube of toothpaste, and it stays localised to your teeth rather than being swallowed.

There is more fluoride in a single can of cola than in a varnish treatment. The risk of any side effects is very low, which is why dentists of all specialties recommend it.

It is one of the most evidence-based preventive treatments in modern dentistry. If your dentist has recommended fluoride varnish, it is worth taking the recommendation seriously.

Call 01323 723757 or book at www.meadsdental.com

Meads Village Dental Practice