Teeth Whitening
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Smile Brighteners

Is your whitening toothpaste not working as well as you want? Smile brighter and test your teeth-whitening IQ with this quiz.

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Question 1 of 20 Correct

True or false: Professional tooth whitening is safe.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. Many tooth whitening procedures are perfectly safe as long as they are performed correctly. Regardless of which procedure you choose, you should consult your dentist before trying anything.

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Question 2 of 20 Correct

True or false: Whitening toothpastes work to remove stains.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. Whitening toothpastes contain ingredients that help remove surface stains only. Unlike tooth-whitening bleaches, toothpastes do not affect stains below the tooth's surface, however.

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Question 3 of 20 Correct

Which of these is not a common side effect of teeth whitening?

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The correct answer is: The most common side effects of tooth whitening, whether it's do-it-yourself in your bathroom or a professional job, are sensitive teeth and irritated gums. These are usually short-lived, however.

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Question 4 of 20 Correct

True or false: Teeth whitening will change the shade of crowns.

Correct! Sorry, that’s incorrect.

The correct answer is: This is false. Teeth whitening will not change the shade of crowns, dentures or bridges.

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Question 5 of 20 Correct

What is chair side bleaching?

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The correct answer is: Chair side bleaching refers to bleaching techniques that require appointments with your dentist. Usually, during these appointments, your dentist will use stronger concentrations of peroxide to whiten your teeth.

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Question 6 of 20 Correct

What is the main ingredient in over-the-counter (OTC) teeth whiteners?

Correct! Sorry, that’s incorrect.

The correct answer is: Most OTC tooth whiteners use a peroxide-based bleaching agent.

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Question 7 of 20 Correct

Who should not use OTC whiteners?

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The correct answer is: All of the above. You should not receive tooth whitening if you have untreated dental problems, infections, cracked or sensitive teeth or tooth decay. Pregnant women, women who are nursing, cancer patients and those with compromised immune systems should also avoid using OTC teeth whiteners.

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Question 8 of 20 Correct

What should you avoid consuming while using OTC whiteners?

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The correct answer is: All of the above. Before, during and after using OTC tooth whiteners, you should not eat certain foods such as blueberries, or drink coffee, tea or red wine, as they can cause staining.

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Question 9 of 20 Correct

True or false: It's safe to get your teeth whitened at the mall.

Correct! Sorry, that’s incorrect.

The correct answer is: This is false. Think twice about bleaching at the mall, as the technicians usually aren't dental care professionals. They aren't equipped to evaluate dental problems that could be made worse by bleaching.

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Question 10 of 20 Correct

How long does professional bleaching take?

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The correct answer is: Chair side bleaching takes from 30 minutes to one hour per visit.

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Question 11 of 20 Correct

What happens during professional teeth whitening?

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The correct answer is: All of the above. There are a few ways to have your teeth professionally whitened at a dentist's office. One method involves painting a gel on your teeth and positioning a laser beam directly over the gel. Another professional method involves creating a soft plastic retainer for your teeth. Once the retainer is created, you will squeeze whitening gel in it and place on top of your teeth for a certain time period, at home.

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Question 12 of 20 Correct

How long does it take for results to appear after professional whitening?

Correct! Sorry, that’s incorrect.

The correct answer is: It really depends on which whitening treatment you choose. Some treatments produce instant results. Others produce results ranging from a few days to several weeks depending on the severity of the stain. Ask your dentist what kinds of results you should expect, and how soon you'll see them.

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Question 13 of 20 Correct

Who is a good candidate for teeth whitening?

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The correct answer is: Ideal candidates for teeth whitening treatments are those whose teeth have become yellow or discolored due to drinking coffee or red wine, smoking or just the natural aging process.

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Question 14 of 20 Correct

What are the risks of professional whitening?

Correct! Sorry, that’s incorrect.

The correct answer is: All of the above. Most people will experience some sensitivity either during or after the initial treatment. Some people who have laser whitening experience sharp, shooting pains in their teeth for up to 48 hours afterwards. Your dentist may offer a special gel or mousse to apply to your teeth to help reduce the pain and sensitivity.

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Question 15 of 20 Correct

True or false: Teeth whitening can potentially harm a pregnant woman's baby.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. Research has shown that teeth whitening could possibly harm an unborn baby. It is also not a good idea to whiten while nursing.

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Question 16 of 20 Correct

At what age is it okay to get your teeth whitened?

Correct! Sorry, that’s incorrect.

The correct answer is: Up until the age of 14 or 15, kids have larger gum pulps, so whitening is likely to cause sensitivity.

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Question 17 of 20 Correct

Which part of your tooth makes it yellow?

Correct! Sorry, that’s incorrect.

The correct answer is: The dentin, or inner layers, of teeth becomes more yellow as you age. You also begin to lose the outer enamel. Because of this, the yellowed dentin shows through the outer enamel to give the appearance of yellow teeth.

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Question 18 of 20 Correct

What is non-vital whitening?

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The correct answer is: Non-vital whitening refers to whitening done on a tooth that has had a root canal and is dead. The tooth needs whitening because it is stained from the inside, where the pulp of the tooth used to be.

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Question 19 of 20 Correct

Which type of stain is easier to remove?

Correct! Sorry, that’s incorrect.

The correct answer is: Extrinsic stains appear on the outer layer of teeth, on the enamel. They generally give a yellowish tint to your teeth and are easier to remove.

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Question 20 of 20 Correct

What can I do to maintain my teeth after whitening?

Correct! Sorry, that’s incorrect.

The correct answer is: All of the above. Within a few days of a professional treatment, you'll most likely see the whiteness fade somewhat. You can minimize this with a tray-and-gel system that your dentist sends you home with, and by maintaining good hygiene and avoiding staining foods.

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You got out of 20 correct. You're a health wiz!

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You got out of 20 correct. Learn more about Teeth Whitening to improve your score.

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Better luck next time!

You got out of 20 correct. Learn more about Teeth Whitening to improve your score.