WASHINGTON - Teeth whitening is the No. 1 requested cosmetic service, and its popularity continues to soar, according to a 2011 survey by the American Academy of Cosmetic Dentistry.
Typically, we pay cosmetic dentists $200 to $500 for at-home tooth whitening and $500 to $1,000 for in-office procedures.
Outside the dentist's office, it's every bit as popular. Americans spend billions every year on over-the-counter teeth-whitening products.
But there's an easier, cheaper and natural approach: the right diet.
'Toothbrush foods' to eat