Dental fluorosis

Dental fluorosis is the appearance of faint white lines or streaks on the teeth. It only occurs when younger children consume too much fluoride, from any source, over long periods when teeth are developing under the gums. Once teeth break through the gums, you cannot develop fluorosis.

The ADA says fluorosis is not a disease and does not affect the health of your teeth. The mild type seen most often in the United States has no effect on how a tooth works. It is only a change in appearance.

Ask your child's dentist about fluoride at each age. If stains bother you, options such as teeth whitening or bonding may be discussed. See also fluoride toothpaste.