Fluoride is a mineral found in nature. It makes the hard outer layer of teeth (called enamel) stronger. When the outer layer is strong, teeth are less likely to get cavities. Children can get fluoride from four different sources:
As excessive swallowing of toothpaste by young children may result in dental fluorosis, children under 6 years of age should be supervised during brushing and only use a small amount (e.g. Pea-sized portion) of toothpaste. Children under 3 years of age should have their teeth brushed by an adult using only a smear of toothpaste.
If you live somewhere that does not put fluoride in the water and your dentist thinks your child is likely to get cavities, he or she may suggest that your child have a bit of fluoride every day. This is called a fluoride supplement. The amount your dentist suggests will depend on your child's age and how much fluoride (if any) is in the water naturally. To give your child even more protection against cavities, your dentist may suggest a fluoride treatment. It is given when your child has a check-up.