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How To Use Crest White Strips – Should You?

Excerpt: Crest 3D White Strips are thin flexible strips that are meant to be inserted into the mouth...
Table of Contents

What Are Crest White Strips?

Crest 3D White Strips are thin flexible strips that are meant to be inserted into the mouth. They use a whitening agent containing peroxide. The strips are meant to temporarily adhere to your teeth for minutes at a time. These are definitely not meant to be worn all day as they can potentially cause harm to your teeth.

How To Use Crest White Strips?

Teeth whitening can cause you to have increased tooth sensitivity for a while after the whitening process, you will want to avoid brushing your teeth before whitening, as this may increase the sensitivity even more.


  1. Remove both strips from the package
  2. Trim the strips to fit your teeth.
  3. Remove the plastic layer that protects the adhesive.
  4. Gently insert the strips onto your teeth. Make sure they don’t touch your gums.
  5. Leave them on your teeth for the recommended duration (usually only a few minutes).
  6. Remove the strips afterward.
  7. Rinse your mouth with water.
  8. Avoid brushing your teeth for at least two hours.
  9. This treatment can be repeated 1-2 times a day.

Notes: Make sure you read the package directions as well to see how long the strips need to be applied.

How Long Should I Wear Crest White Strips?

Different whitening strips will have different requirements for how long you should wear them. For these white strips you can try wearing them for a minimum of 5 minutes a day, up to 45 minutes a day. This will depend on how the strong your brand of whitening strips are. If you wear them for less time then that, or you skip a day, you may be wasting your time and money. If you wear strips for too long they could hurt your enamel and you may have increased sensitivity after the treatment is done which can be uncomfortable.

If it is your first time using Crest 3D White Strips, you may want to wear them for the minimum amount of recommended time first. Once you are used to them and you are comfortable with tooth sensitivity, you can increase the duration of the treatment.

How To Keep Your Teeth White After Using The whitening Strips?

Once you use the strips, you will want to implement a lifestyle that supports healthier, whiter teeth. The main things you will want to avoid are:



  • Tobacco
  • Alcohol
  • Coffee/tea
  • Energy drinks, pop, fruit juices
  • Sugary or starchy foods

You do not need to cut out these foods completely, but if you really want a whiter smile, avoiding these products would be best. If you do decide to have drinks that could stain your teeth, coffee, wine, soda, etc. it is advised that you use a straw so the liquid will come into contact with your teeth less.

Regular dental appointments are one of the best ways to keep your teeth white. You can get your mouth cleaned and inspected by healthcare professionals. The clinic will also give you personalized tips on how to improve your oral care.

Why Do Crest Whitestrips Work?

Crest Whitestrips work by using hydrogen peroxide as the whitening agent for the enamel of your teeth. The hydrogen peroxide is suspended in a gel that is on the strips. Hydrogen peroxide is effective at getting rid of extrinsic stains (stains caused externally). For example, if you drink coffee, or wine, or have some minor surface staining, you may notice your teeth are a few shades whiter after they have been properly treated.

Using a DIY (do-it-yourself) method is a little risky, you may not do it right and you could be wasting your money. If you use too much of it, you could cause a lot of short-term sensitivity and discomfort.

What Are The Ingredients in Crest White Strips?

These products contain a fair amount of chemicals that are aimed at getting you a whiter smile:

  • Water
  • Glycerin
  • Hydrogen peroxide
  • Polyvinylpyrrolidone (PVP)
  • Carbomer 956
  • Sodium hydroxide
  • Sodium saccharin
  • PEG-8 
  • Acrylates copolymer
  • Pyrophosphate (in Crest 3D White Whitestrips Stain Shield) 
  • Polyethylene (the textured strip)

Before buying Crest 3D Whitestrips you will want to get a dentist appointment to see if the stains on your teeth can be fixed by Whitestrips. The stains you are experiencing could be either extrinsic or intrinsic (external or internal). If the stains are internal, it could be due to decay, underlying conditions, or even medication. Depending on the type of stain you have, your dentist may advise you to not use Crest 3D White Strips.

Are Crest Whitestrips Dangerous?

If you are treating your teeth with Whitestrips, you could potentially cause some damage to your tooth enamel. If you leave them in too long, or your teeth are sensitive to them, it may cause issues. Many people tend to experience tooth sensitivity after using these products. This is due to the impact of the whitening agents on your tooth enamel. If you really do not like sensitive teeth, this product may not be for you. The tooth sensitivity should be only temporary after the treatment. If the sensitivity lasts longer than a couple of days you may want to consider a dentist appointment.

How Much Do Crest Whitestrips Cost?

If you are uncomfortable using these at home unsupervised, it may be a good idea to get your teeth whitening at a dental clinic instead. Most whitening strips are on average between $50-$100 each. If the individual uses the product wrong, this could be a lot of money for them to throw away. If your stains are too severe, you may not even get the intended results you were hoping for even if you used the kit correctly.

Are There Alternatives to Whitestrips?

At Smiles Dental Group, we believe in Zoom Teeth Whitening. This is an in-office, supervised procedure, that is used to enhance your smile.

Zoom can increase the whiteness of your teeth by a few shades in one treatment that won’t take more than an hour. You will have trained specialists taking care of your smile so you don’t have to worry about getting the best treatment.

Frequently Asked Questions

Most patients will be eligible for Zoom Teeth Whitening, your dentist will be able to tell you if it’s the right choice for your smile.

At the time of this post, we do offer a take-home whitening kit for our regular patients, the Zoom in-office procedure is not included with regular dental care.

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