Peroxides, such as hydrogen peroxide and carbamide peroxide, contain very volatile oxygen molecules. When these oxygen molecules touch surface stains on your teeth, they react by breaking apart the chemical bonds that hold the stains onto your enamel. This “bleaches” them away and restores the appearance of your smile.

How does teeth whitening actually work?

Generally, bleach-based whiteners contain either hydrogen peroxide or carbamide peroxide (which reacts with water to form hydrogen peroxide). When these chemicals break down, they release oxygen into the enamel on the teeth, which lightens the color.

Is whitening bad for your teeth?

What are the risks of teeth whitening? No matter what treatment you use, there's a chance your gums will be sensitive to the chemicals used in teeth whitening, particularly if you already have sensitive teeth. There's also a chance of burns to gums and some of the whitening kits used at home can harm tooth enamel.

How long does it take for teeth whitening to work?

The full effects of tooth whitening can usually be seen after the first 24 hours. If you use at-home whitening kits, it can take longer to see results. Due to the lower concentration of whitening agents, it can take upwards of two to three weeks to achieve the results you are looking for.

What does the blue light do in teeth whitening?

Your dentist will apply a whitening gel to your teeth. Then they will use a blue LED light, which activates the hydrogen peroxide or carbamide peroxide whitening gel. This helps break apart the gel faster. The resulting chemical reaction lifts stains off your teeth.

How Tooth Whitening Works

36 related questions found

Are LED teeth whitening safe?

Is LED whitening safe? For the most part, it is considered safe. Sensitivity may occur with this type of teeth whitening. Sensitivity is related to the type of gel solution (bleaching agent), strength, and usage.

How often should you use LED teeth whitening?

How Often Should You Use It? Use 15 minutes once a day for 21 days, and then one to two times weekly to maintain that beautiful smile. You'll see visible results just after an hour of your first use.

Can yellow teeth turn white?

The good news is that yellow teeth can become white again. Part of the process takes place at home, while the other part is in your dentist's office. But together with your dentist and dental hygienist, you can enjoy a bright white smile again.

Do you brush your teeth before or after whitening?

We recommend brushing your teeth beforehand for any type of whitening. This is to ensure that the plaque (the sticky surface layer of the teeth) is removed and that any whitening agents contained in the strips or gel are in close contact with the teeth.

Can I eat after teeth whitening?

After teeth whitening, the teeth are particularly porous and can easily absorb colored substances from foods and beverages. It is, therefore, important to avoid such foods for at least 48 hours after the procedure to prevent staining.

What's the safest way to whiten teeth?

The safest and most effective way to whiten your teeth is with professional teeth whitening treatments. These methods provide instant results and are completed in a dentist's office.

Does baking soda whiten teeth?

Baking soda is good for teeth whitening because it is a very mild abrasive, which helps remove stains from the surface of your teeth. In addition, baking soda is alkaline and salty, which helps lighten acid-based food stains – such as those from coffee, tea, and red wine – on teeth.

Do Whitestrips damage enamel?

Are Crest 3D White Whitestrips Harmful to Teeth or Can They Damage the Enamel? No, this product is formulated to be safe and effective when used as directed. They contain the same whitening ingredient as the professional products dentists use to whiten teeth.

Do blue light teeth whiteners work?

The blue LED lights offered to people for at-home use do nothing to whiten or speed up the price of whitening. This is simply a blue light that does not generate the same UV frequency used in in-office laser whitening.

How long do you leave LED light on teeth?

Turbo-charge bright on™ with the LED accelerator light:

After applying the gel, plug the light into your phone using the appropriate attachment and insert the light into your mouth. Keep the light on for five minutes. After five minutes, remove the light and unplug it from your phone.

Why do my teeth look gray?

According to the American Dental Association, if a tooth is damaged due to trauma or infection, the pulp and nerves can die and the tooth turns dark, pink, gray or black. Metal: Some materials used in the past by dentists to repair teeth such as silver fillings may also lead to graying of teeth over time.

What happens if you leave teeth whitening gel on too long?

Always follow the manufacturer's directions when using whitening products. Leaving them on for too long can cause tooth sensitivity, gum irritation, and tooth damage. Your dentist can recommend the best whitening strips for your situation.

Can you swallow saliva while using whitening strips?

What happens if I swallow the strip or some of the gel from the strip? No adverse effects will result from ingesting the peroxide gel. It will simply pass through your system without causing any damage.

Are Crest strips 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.

Can mouthwash whiten teeth?

A mouthwash after brushing gets into any gaps you've missed the first go around and allows the fluoride to soak into the enamel. A mouthwash that contains hydrogen peroxide and used at least twice a day for three months can significantly whiten teeth.

How can I permanently whiten my teeth?

Luckily, permanent, whiter teeth can be achieved by receiving porcelain veneers in Scotts Valley. Here is a look at the difference between these two popular cosmetic dental procedures. Porcelain veneers can be used to resolve a variety of appearance issues with teeth, including stains or discoloration.

Is a cavity a hole?

A cavity is a hole in a tooth that develops from tooth decay. Cavities form when acids in the mouth wear down, or erode, a tooth's hard outer layer (enamel). Anyone can get a cavity. Proper brushing, flossing and dental cleanings can prevent cavities (sometimes called dental caries).

Does UV light help teeth whitening?

UV, halogen, or LED light by itself does nothing to whiten teeth. Hydrogen peroxide or carbamide peroxide solutions are what get rid of stains and lighten teeth.

Can you whiten teeth too much?

Using teeth whitening products too much can erode tooth enamel, leaving you with a higher risk of tooth decay. Translucent appearance: Applying peroxide-based whitening products too much can leave your teeth with a translucent appearance, rather than a white one.

Do electric teeth whiteners work?

On average, LED teeth whitening can lighten your smile 6-8 shades during a single whitening session. Overall, the addition of LED lights to whitening procedures has improved the effectiveness of whitening agents, allowing for brighter and whiter smiles.