Is It Safe to Whiten Your Teeth? And if So, What Works? (Published 2022) (2024)

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Many products claim to lighten and brighten your teeth. Here’s what the experts say about them.

Is It Safe to Whiten Your Teeth? And if So, What Works? (Published 2022) (1)

From toothpastes to gels, strips, mouth trays and rinses, there is a dizzying array of products that claim to lighten, brighten and whiten your teeth. And with so many options lining drugstore shelves, it can be daunting to figure out the right method for you.

But are at-home teeth whitening products as effective as they claim? And are they safe? We asked some experts to find out.

How does teeth whitening work?

Teeth whitening products sold over the counter work in one of two ways, the experts we spoke with said. They either scrape away stains using physical force or bleach those stains with the same chemicals used for in-office whitening procedures.

Physical abrasion. Products that have any sort of grittiness — whether they’re whitening toothpastes, regular toothpastes or just plain baking soda — will act as an abrasive and physically file away stains that occur on the surfaces of your teeth, said Dr. Dorota Kopycka-Kedzierawski, a dentist at the University of Rochester Medical Center. Many regular toothpastes contain a little bit of texture for this reason, and brushing itself is an act of physically scraping off stains and debris.

Chemical bleaching. Most whitening strips, gel-filled mouth trays and rinses work by putting your teeth in contact with chemical bleaching agents like carbamide peroxide or hydrogen peroxide. One major difference between these products and in-office versions, said Timothy Bromage, a professor of molecular pathobiology at the N.Y.U. College of Dentistry who specializes in bone and tooth biology, is that the concentrations of chemicals in over-the-counter products are much lower.

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Is It Safe to Whiten Your Teeth? And if So, What Works? (Published 2022) (2024)

FAQs

Is It Safe to Whiten Your Teeth? And if So, What Works? (Published 2022)? ›

Whitening your teeth too often increases the risk of negative side effects, such as tooth sensitivity and damage to tooth enamel and gums. But there's no official guideline for how often whitening can be done safely. That's why it's important to get your dentist's recommendation and always follow product instructions.

Is it safe to whiten your teeth? ›

Teeth whitening is safe if done by a dental professional or if you use products that are approved by the American Dental Association (ADA). Having the ADA Seal of Acceptance on an over-the-counter whitening product ensures that it's safe and effective.

Who shouldn't get teeth whitening on? ›

Pregnant and lactating women. People who have restorations such as fillings, implants, crowns and dental bridges. Children under 16 years of age. Patients with periodontal disease, tooth decay, cavities and exposed roots.

Do any teeth whitening products actually work? ›

There are two types, two versions of peroxide, hydrogen peroxide, and carbamide peroxide, that are used for whitening. And they are effective. They do work. So if the whitening kit you're using lists that product, you can rest assured that it will be effective.

What is clinically proven to whiten teeth? ›

Whitening Agents

Reducing intrinsic stains involves a chemical reaction that changes the color of the tooth. The most common ingredients used in bleaching are carbamide peroxide and hydrogen peroxide, which are used at different concentrations depending on the products or regimens used.

What is the least damaging way to whiten your teeth? ›

Baking Soda: As long as you are careful to brush gently, baking soda can eliminate stains from the surface of your teeth without damaging them. Whitening Strips: Whitening strips mold to the shape of your teeth to whiten them. Whitening strips are both safe and effective.

Is using hydrogen peroxide to whiten teeth safe? ›

Like many chemicals, hydrogen peroxide is only safe in small doses. While hydrogen peroxide is generally recognized as safe for whitening, the key lies in using it in appropriate concentrations. Anything stronger than a 3% concentration is dangerous, and many whitening products dilute the solution even further.

Why do dentists not recommend teeth whitening? ›

Tooth and gum sensitivity and pain

Store-bought products may contain abrasive substances like hydrogen peroxide, which can be effective if used minimally, but in large doses can cause erosion of teeth's enamel and shrinkage of the gums.

How to whiten yellow teeth naturally? ›

The following strategies may help whiten teeth:
  1. Making dietary changes. Eliminating foods that mark the teeth can prevent further staining. ...
  2. Trying oil pulling. ...
  3. Brushing with baking soda. ...
  4. Using hydrogen peroxide. ...
  5. Whitening with fruit. ...
  6. Chewing high fiber foods.

Does baking soda whiten teeth? ›

Baking soda can be used with some water to remove the stains on the surface of the teeth. It can also be used with hydrogen peroxide to enhance its whitening effects. Baking soda can be used by individuals with regular toothpastes too. It is also used commercially in some teeth whitening products and toothpastes.

How to get white teeth in 1 day with toothpaste? ›

All you need to do is to put your regular toothpaste on your toothbrush and then add a little quantity of powdered milk on top of the toothpaste and then brush your teeth. Ensure to rinse your mouth properly after brushing. After a short while, you will notice that your teeth will become whiter than they use to be.

Do crest white strips really work? ›

If you want to know the truth, yes, Crest Whitestrips do work. They can make your teeth look whiter because of a gel that is spread along the strip and placed onto the surface of your teeth. This substance contains hydrogen peroxide or carbamide peroxide and works to penetrate the tooth enamel to remove stains.

Are crest white strips safe? ›

Is crest whitestrips safe? Crest 3D Glamorous Whitestrips is approved by the American Dental Association, and are considered safe when used occasionally and in moderation. If used incorrectly or too frequently, this product may cause damage to your gums and teeth.

What is the number 1 recommended teeth whitening? ›

There's no doubt that Crest Whitestrips are one of the most recognizable over-the-counter teeth whitening systems available. It seems almost as if they've been around forever — and professionals still love 'em. “Over the counter, I recommend Crest 3D White Whitestrips,” Dr. Hadaegh says.

How to whiten teeth over 60? ›

Bleaching Trays

Compared to commercial products, whitening trays from your dentist are stronger and much safer for seniors in particular. As you age, your gums and teeth can become more sensitive. Your dentist can first evaluate your oral health to determine if you are eligible to receive teeth whitening.

Can old yellow teeth be whitened? ›

It's natural for teeth to appear darker as they age, but a bleaching product with hydrogen peroxide or urea peroxide can help turn back the clock – and a whitening toothpaste is an easy way to get a jump-start.

How often can you safely whiten your teeth? ›

How often teeth whitening treatments are recommended by dentists. Professional teeth whitening performed in the dentist's office is recommended once every year to every 18 months, depending on how long the results last. At-home kits can be used as often as once every four to six months.

At what age is it safe to whiten teeth? ›

Most children lose all of their baby teeth and have all their adult teeth by the time they are 12 or 13 years old, and enamel calcification takes about two more years. Therefore, children should not bleach their teeth until about 14 or 15 years old.

How many times a year is it safe to whiten teeth? ›

We advise whitening your teeth just once a year, whether professionally or at home. This should keep sensitivity from becoming a problem while helping you maintain a white, natural-looking smile. Typically, the professional-grade whitening kits available from our dental office last about a year.

How long does teeth whitening last? ›

The effects of teeth whitening can last up to 2-3 years or as little as 6 months. It varies from person to person. Things that will stain your teeth quickly and make your whitening short-lived include: – Smoking.

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