Safest Teeth Whiteners
The safest ways to whiten your teeth explained
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Tooth whitening is any process that lightens the color of a tooth. Whitening is accomplished by either the physical removal of the stain or a chemical reaction that lightens the tooth color.
LED teeth whitening uses a tooth-whitening agent, such as hydrogen peroxide, and an LED (light-emitting diode) to whiten teeth.
To get a brighter smile, Americans spend $1.4 billion annually on nonprescription teeth whitening products. Cosmetic tooth bleaching is a global industry, with people spending $3.2 billion to brighten their teeth worldwide.
During the LED teeth whitening process, users first treat the teeth with a chemical agent that has bleaching properties. Blue light from the LED is then used to activate the whitening agent and start the chemical reaction.1
When this interaction happens, the blue light penetrates the enamel and lifts existing stains.
LEDs are highly efficient and last longer than other light sources. They do not have a warm-up time and immediately switch on at their highest intensity.
However, the light from an LED will not change the color of your teeth if used alone. It acts as a catalyst to speed up the chemical reaction caused by a whitening agent.
The most commonly-used whitening agents are hydrogen peroxide and carbamide peroxide.
Learn about the safest ways to whiten your teeth.
LED teeth whitening was developed to be safe for at-home use. Current research shows that LED teeth whitening is safe and effective when users follow the manufacturer's protocols.2, 3
LEDs as a light source are a safer alternative to ultraviolet (UV) light, which can cause cells to mutate. An LED light does not cause cell mutations and speeds up the whitening reaction without UV light risks.
You should talk to your dentist before whitening your teeth. Teeth whitening does not work for everyone. The results depend on the user's lifestyle and the cause of their teeth's discoloration.
LED teeth whitening works better on yellowish teeth compared to brownish or greyish-hued teeth.
Like other teeth whitening methods, the most common side effects of LED teeth whitening kits are tooth sensitivity and mild gingival irritation.3 Factors that increase the risk of these side effects include:
Tooth sensitivity can last for several days and begins during the whitening treatment. Gingival irritation can begin a day after the treatment and last several days.
More severe side effects include susceptibility to tooth demineralization. This is caused by overexposure to the bleaching agent. Another severe side effect is pulpal damage.
See NewMouth’s top 10 teeth whitening products of 2022.
Blue light LED teeth whitening offers many benefits, including:
Blue light LED teeth whitening also has some downsides, including:
Whether or not LED teeth whitening is worth it depends on a person's lifestyle. The longevity of the treatment results varies. Several factors can impact tooth discoloration, including:
To maintain a whiter smile after treatment, follow these steps:
All types of bleaching — whether over-the-counter, take-home kits, or in the dental office — are temporary, requiring touch-ups at some point. If your lifestyle lets you maintain the results, LED teeth whitening can be worth it.
The risk of side effects is only great if you do not follow the product instructions. However, consult your dentist to determine which LED teeth whitening kit is best for you.
Before whitening your teeth at home, have your teeth checked by your dentist for any tooth problems which could cause the pulp to become irritated during whitening. This can cause temporary sensitivity and discomfort.
You should ask your dentist which teeth whitening products they recommend based on your personal needs and dental history.
When using an at-home whitening system, follow the manufacturer's instructions for as many treatments as possible to reach your desired shade of whiteness. Each whitening kit is different, so read the directions carefully and follow the guidelines.
Once you've achieved your desired shade, you can transition to whitening maintenance depending on your diet and homecare.
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