The effectiveness of teeth bleaching depends partly on the types of stains.
Extrinsic tooth stains are the easiest to remove. These surface stains have not yet penetrated through the enamel into the dentin. Extrinsic stains are caused by dark-colored foods and liquids like blueberries, carrots, coffee, red wine, and cola. And nicotine is no better for your smile than it is for your lungs.
Unfortunately, even if you eliminate these common teeth stainers, your teeth will become discolored over time. Like gray hair, wrinkles, and memory lapses, a dull smile is an inevitable part of aging for some people.
Intrinsic tooth stains emerge from the inside out. Tooth injury or tetracycline are the usual culprits. Intrinsic stains are more inconvenient to remove entirely, but it is possible to lighten them with professional tooth whitening available at your cosmetic dental office.
It is never too late or too early to whiten your smile.
Men and women can take years off their appearance by restoring the youthful white smile they once enjoyed. Teens and young adults with surface stains can prevent them from becoming intrinsic stains with tooth bleaching.