Pearly whites: Can you get a celebrity smile at home?
by Staff
Although the quickest way to a whiter-than-white smile is to visit your dentist's office, you can do the job yourself at home if you invest a little more time -- and a lot less money! Take this quiz to find out more about getting your pearlies extra white in the comfort of your own home.

Where does teeth whitening rank in terms of annual requested cosmetic procedures?

  • first
  • third
  • 12th

In a survey conducted by the American Academy of Cosmetic Dentistry, what percentage of adults felt unattractive teeth could hurt a person's chance for career success?

  • 23 percent
  • 59 percent
  • 74 percent

How much did Americans spend on over-the-counter whitening products in 2006 alone?

  • $1.5 million
  • $7.5 million
  • $1.4 billion

How many naturally occurring shades of teeth are there?

  • six
  • 12
  • 28

Most people have teeth that are what shade?

  • B1: white
  • A2: ivory
  • C3PO: silver

What is the main ingredient in most teeth whitening pastes and gels?

  • hydrogen peroxide
  • chlorine
  • fluoride

This substance, also found in some whitening formulas, decomposes in the mouth to release hydrogen peroxide:

  • sodium fluoride
  • carbamide peroxide
  • potassium bisulfate

At-home whitening treatments can slightly weaken what?

  • the walls of your cheek cells
  • toothbrush
  • the enamel on your teeth

Which of the following groups shouldn't whiten their teeth?

  • those who've had a fluoride treatment
  • those with an active cavity
  • those whose teeth are sensitive to cold

Gum with this chemical can reduce staining by as much as 33 percent:

  • monosodium glutamate
  • sodium hexametaphosphate
  • sodium fluoride

When used twice daily, whitening toothpastes take approximately how long to work?

  • two to four days
  • two to four weeks
  • two to four months

This substance can make teeth look instantly whiter:

  • yellow bitumen
  • blue covarine
  • red hylasol

What is the range of concentration of hydrogen peroxide in most at-home whitening gels?

  • .5 to .7 percent
  • 1 to 2 percent
  • 3 to 10 percent

Baking soda whitens teeth by breaking down what?

  • oxygen triple bonds
  • hydrogen single bonds
  • carbon double bonds

A paste made of baking soda and what common fruit can whiten teeth?

  • grapefruits
  • bananas
  • strawberries

Which of the following foods can help whiten teeth?

  • whole grain bread
  • red meat
  • celery

Swishing this in your mouth after eating can reduce staining:

  • orange Juice
  • water
  • Pepsi

Chewing gum with what chemical can not only help clean teeth, but also fight decay?

  • Xylitol
  • guar
  • phosphorous

What part of the tooth is clear and porous?

  • enamel
  • root
  • dentin

Which of these is the most-effective type of at-home whitening product?

  • paint-on gels
  • whitening strips
  • toothpaste