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Pearly Whites: Natural Tooth Whitening Quiz
by Staff
While they won't whiten your teeth like bleaching products will, natural teeth whitening methods brighten your smile by removing surface stains and helping strengthen teeth enamel. Test your knowledge of modern day and historical teeth whitening options that are bleach-free.

What part of the tooth is responsible for tooth color?

  • enamel
  • dentin
  • pulp

Which of the following beverages won't stain teeth?

  • cola
  • wine
  • milk

During which ancient civilization did tooth whitening begin?

  • Roman
  • Egyptian
  • Mayan

The ancient Egyptians combined ground pumice stone with what liquid to create a whitening toothpaste?

  • lemon juice
  • water
  • wine vinegar

True or false: Tooth whitening chewing gum won't actually whiten your teeth.

  • true
  • false

Teeth of which color will respond the best to at-home, natural teeth whitening methods?

  • yellowish
  • brownish
  • grayish

Which of the following is not a cause of tooth discoloration?

  • lipstick
  • smoking
  • tetracycline (an antibiotic)

True or false: The Romans used urine to whiten their teeth.

  • true
  • false

What mineral is added to water to help prevent cavities, but is also known to stain teeth?

  • iodine
  • chlorine
  • fluoride

What ingredient do wood ash, an ancient natural teeth whitening option, and soap have in common?

  • carbamide peroxide
  • potassium hydroxide
  • hydrogen peroxide

True or false: Eating apples and celery may help to remove stains from teeth.

  • true
  • false

Which of the following tricks won't actually help keep your pearly whites white?

  • frequent use of teeth whiteners
  • using a straw when drinking dark liquids
  • swishing with water after eating and drinking

What is the best solution for removing stains between teeth?

  • brushing
  • flossing
  • baking soda

Which fruit can be crushed and applied as a tooth-whitening paste?

  • plum
  • blueberry
  • strawberry

Who might benefit most from alternatives to bleach-based teeth whitening products?

  • people who have gum disease
  • people who have dental restorations
  • all of the above

True or false: Mouthwash may stain your teeth.

  • true
  • false

What part of the tooth may become damaged if teeth whitening products are too strong or overused?

  • bone
  • enamel
  • cementum

Which of these foods should you eat after a meal to help brighten your smile?

  • a slice of bread
  • a small piece of cheese
  • a handful of grapes

Which of the following is not typically combined with baking soda to create a teeth whitening paste?

  • salt
  • lemon juice
  • green tea

Why does increased saliva production help whiten teeth?

  • saliva dilutes acidic foods and beverages before they can erode enamel
  • saliva helps wash away stain-causing particles
  • all of the above