Skip to content

Oral Care

Select An Article
Font Size

Dental Health and Fluoride Treatment

Fluoride is a mineral that occurs naturally in many foods and water. Every day, minerals are added to and lost from a tooth's enamel layer through two processes, demineralization and remineralization. Minerals are lost (demineralization) from a tooth's enamel layer when acids -- formed from plaque bacteria and sugars in the mouth -- attack the enamel. Minerals such as fluoride, calcium, and phosphate are redeposited (remineralization) to the enamel layer from the foods and waters consumed. Too much demineralization without enough remineralization to repair the enamel layer leads to tooth decay.

Fluoride helps prevent tooth decay by making the tooth more resistant to acid attacks from plaque bacteria and sugars in the mouth. It also reverses early decay. In children under 6 years of age, fluoride becomes incorporated into the development of permanent teeth, making it difficult for acids to demineralize the teeth. Fluoride also helps speed remineralization as well as disrupts acid production in already erupted teeth of both children and adults.

Recommended Related to Oral Health

Choose the Best Teeth Whitener

There's a saying: "A smile can brighten the darkest day." Maybe that's why so many of us look for ways to change our teeth from dull and yellow to bright and shiny. Yellow, stained teeth tend to come with the territory for coffee, tea, and red wine drinkers. Smokers, of course, put their teeth at greatest risk for unsightly stains. But everyone's teeth suffer after years of wear and tear --etchings or grooves begin to develop on the teeth's surface, making them more susceptible to stains over time...

Read the Choose the Best Teeth Whitener article > >

In What Forms Is Fluoride Available?

As mentioned, fluoride is found in foods and in water. It can also be directly applied to the teeth through fluoridated toothpastes and mouth rinses. Mouth rinses containing fluoride in lower strengths are available over-the-counter; stronger concentrations require a doctor's prescription.

A dentist in his or her office can also apply fluoride to the teeth as a gel, foam, or varnish. These treatments contain a much higher level of fluoride than the amount found in toothpastes and mouth rinses. Varnishes are painted on the teeth; foams are put into a mouth guard, which is applied to the teeth for one to four minutes; gels can be painted on or applied via a mouth guard.

Fluoride supplements are also available as liquids and tablets and must be prescribed by your dentist, pediatrician, or family doctor.

When Is Fluoride Intake Most Critical?

It is certainly important for infants and children between the ages of 6 months and 16 years to be exposed to fluoride. This is the timeframe during which the primary and permanent teeth come in. However, adults benefit from fluoride, too. New research indicates that topical fluoride -- from toothpastes, mouth rinses, and fluoride treatments -- are as important in fighting tooth decay as in strengthening developing teeth.

In addition, people with certain conditions may be at increased risk of tooth decay and would therefore benefit from additional fluoride treatment. They include people with:

  • Dry mouth conditions: Also called xerostomia, dry mouth caused by diseases such as Sjögren's syndrome, certain medications (such as allergy medications, antihistamines, antianxiety drugs, and high blood pressure drugs), and head and neck radiation treatment makes someone more prone to tooth decay. The lack of saliva makes it harder for food particles to be washed away and acids to be neutralized.
  • Gum disease: Gum disease, also called gingivitis, can expose more of your tooth and tooth roots to bacteria increasing the chance of tooth decay.
  • History of frequent cavities: If you have one cavity every year or every other year, you might benefit from additional fluoride.
  • Presence of crowns and/or bridges or braces: These treatments can put teeth at risk for decay at the point where the crown meets the underlying tooth structure or around the brackets of orthodontic appliances.

Ask your dentist if you could benefit from additional fluoride.

Next Article:

How Do I Measure Up? Get the Facts Fast!

Number of Days Per Week I Floss

Get the latest Oral Health newsletter delivered to your inbox!


or
Answer:
Never
(0)
Good
(1-3)
Better
(4-6)
Best
(7)

You are currently

Only 18.5% of Americans never floss. You are missing out on a simple way to make a big difference in the health of your mouth. Regardless of how well you brush, plaque still forms between your teeth and along your gums. Floss removes food trapped between the teeth and removes the film of bacteria that forms there before it turns to plaque, which can cause inflamed gums (gingivitis), cavities, and tooth loss. Try flossing just one tooth to get started.

You are one of 31% of Americans who don't floss daily. You are missing out on a simple way to make a big difference in the health of your mouth. Regardless of how well you brush, plaque still forms between your teeth and along your gums. Toothbrush bristles alone cannot clean effectively between these tight spaces. Flossing removes up to 80% of the film that hardens to plaque, which can cause inflamed gums (gingivitis), cavities, and tooth loss. Aim for 3 more days!

You are one of 31% of Americans who don't floss daily, but you're well on your way to making a positive impact on your teeth and gums. Regardless of how well you brush, plaque still forms between your teeth and along your gums. Toothbrush bristles alone cannot clean effectively between these tight spaces. Flossing removes up to 80% of the film that hardens to plaque, which can cause inflamed gums (gingivitis), cavities, and tooth loss. Aim for all 7 days!

Only 50.5% of Americans floss daily, and good for you that you are one of them! Regardless of how well you brush, plaque still forms between your teeth and along your gums. Toothbrush bristles alone cannot clean effectively between these tight spaces. Flossing removes up to 80% of the film that hardens to plaque, which can cause inflamed gums (gingivitis), cavities, and tooth loss. Congratulations on your good oral health habit!

SOURCES:

American Dental Association, Healthy People 2010

This tool is intended only for adults 18 and older.

Start Over

Step:  of 

Today on WebMD

close up of woman sticking out tongue
Sores, discoloration, bumps and more.
toothbrushes
10 secrets to a brighter smile.
 
Veneer smile
Before and after.
Woman checking her bite in mirror
Why dental care is important.
 

Woman dissatisfied with granola bar
Slideshow
woman with jaw pain
Quiz
 
eroded front teeth
Slideshow
brushing teeth
Video
 

Variety shades of tea
Slideshow
mouth and dental instruments
Article
 
Closeup of a happy young guy brushing his teeth
Tool
womans smile
Video