Why Do I Need Fluoride?

When you bring your family to the dental office for regular visits, you will likely hear us ask about and recommend a fluoride treatment. Our teeth are constantly under attack from our diet and oral bacteria, and fluoride is an easy and inexpensive method to protect them.  A person who has never had a cavity before is still at risk for decay. At home, most people are likely using a toothpaste containing fluoride which offers some protection but in office treatments can help to “fill in the gaps”.  


Our office uses a fluoride varnish which is the preferred method of fluoride delivery today.  Varnish is a highly concentrated fluoride, and due to it’s adherent nature, can stay on the teeth for several hours. Not only does fluoride prevent decay, but it also helps to re-mineralize enamel and treat tooth sensitivity. The preventive effects of varnish are strongest in infants, toddlers, and pre-school children before cavities start. It also is effective in reducing decay in high-risk children and teens. When compared to the cost of filling cavities, fluoride is inexpensive. Insurance payment should not supersede proper standard of care. Although it is customary to see your dentist twice a year, fluoride varnish can be applied four times a year. In a perfect world, we as providers would love to see acceptance of fluoride at every preventative appointment, and this is still only half of the recommended applications.


Studies have been conducted which compare varnishes to the old foam and gel style fluoride treatments.  Head to head, varnishes were ultimately shown to offer significant long term cavity protection.  Other benefits include no longer worrying about accidental ingestion and nausea following application, better taste, and not having to wait 30 minutes to eat or drink after treatment.  

I would like to add an Idaho specific fluoride fact, because the question of fluoride water content does come up.  Very few water systems in Idaho add fluoride.  If you have a private well and are questioning content, you can have your water tested.  It should be noted though that levels can fluctuate naturally so the sample may not represent constant concentration.

- Written by Angela, Registered Dental Hygienist

*Information regarding fluoride studies can be referenced at pubmed.gov.

*More information about water content can be found with the Idaho Department of Environmental Quality.  

Seau Carlson