Brush and floss more regularly. White spots around the edges of teeth and the gum line are often tartar, which is calcified plaque. While good dental hygiene should keep tartar at bay, if your flossing routine leaves something to be desired this could be the culprit. Floss at least once a day and brush once a day.
Avoid excess fluoride. While fluoride makes your teeth strong, too much of it causes a condition called fluorosis, which causes white or yellow spots on the teeth. If your drinking water contains fluoride and you use a fluoride rinse in addition to it, you can get fluorosis. If you're not sure if your drinking water contains fluoride, call your local water district.
Visit your dentist and check for tooth decay. Before a cavity forms, a white spot often appears on the tooth. This happens especially around the bottom of the tooth, although it can appear on the surface. Have your dentist check out the white spots and make sure it's not decay. If it is, the spot will go away once filled.
Have microabrasion performed. This procedure involves grinding at stains with pumice and acid. This only works for certain white spots, such as stains or cement left over from dental work.
Get veneers. White spots due to advanced fluorosis, tooth trauma or lesions after braces are taken off can't be removed. In this case, you'll need a veneer placed. A veneer is a thin piece of porcelain that's bonded over the front of the tooth.