by networker

Question by le cochon bleu: Are light and radiation from L.E.D.s ever what laser beams’ light and radiation are?
I had the impression that Light Emitting Diode beams are not the same as Laser beams.

At , search under “laser whitening” (for example) there are results which suggest that L.E.D. lights project laser light.

Example quotes from one item:

“Laser whitening or ” POWER WHITENING ” is the latest method developed to whiten your teeth. … the white laser light shone on your teeth will activate the chemical … You can use it as often or as little as you like. … This is the safe simple LED light added to whitening gel.”

I have bought 2 tooth whitening light packages via ebay which I’m unsure about. One states that the light given off is just L.E.D. light. The other is a blue light emitter which looks like L.E.D. lights though it’s stated the light is laser.

Whether or not L.E.D. light whitens teeth, I don’t think these are laser lights. Why would dentists charge £250 for 1 1/2 hours laser whitening? (Ebay sold kits are often less than £10.)

Can L.E.D. light ever be Laser?
I thought L.E.D.s have a specific way of producing light. Is this true? If an L.E.D. were adapted to be a Laser light, as Garret J suggests, would this not mean that the unique L.E.D. light production would be something else (other than the L.E.D. way of producing light)?

Best answer:

Answer by Garrett J
Sure, they can, sometimes. (Sorry, that’s not the easy answer.) It’s possible to configure an LED so that it emits laser light, but it’s equally possible to configure it so that it emits garden-variety light like a light bulb.

Consider what laser light really means: It has to be coherent, (all the waves in phase,) collimated, (all the light going in the same direction, EXACTLY the same direction,) and concentrated, (a very very small point.) LED lasers are used CD and DVD players, as well as the laser pointers people torment their cats with.

On the other hand, most of the LED lights you see are NOT lasers, they’re just used as small (very energy efficient,) light bulbs. I’m looking at a clock on my desk right now that uses about 30 of them. Even when used as bulbs, LEDs actually emit most of their light upwards out of the bulb, but that in itself does not make them a laser.

As for the products you purchased, I seriously doubt any of them actually use lasers. A laser would generate a light spot much too small to whiten your teeth – you’d end up with certain areas of your teeth overexposed, (and possible ETCHED as a result,) while others would not get whitened at all. It’s easy to make grandiose claims on eBay, and terms like “LED” and “laser” are great at impressing the yokels. What you’ve probably got are Ultraviolet LEDs that catalyze whatever bleach they put on your teeth, to speed the whitening process.

Know better? Leave your own answer in the comments!

Please read other answers to this question at the very bottom of this page, below you will find a video and related articles that will try to answer the question, if you have a proper answer please post it at the bottom.

Laser Teeth Whitening – Get A Smile To Smile About

No sector of life in the 21st century life has gone untouched by the advance of technology. And those advances have brought with them both positive and negative effects on the individual lives, which have come to depend on them.

One of the most significant breakthroughs has been in the field of laser technology, and new laser applications have been found for industrial businesses, as well as optical and cosmetic surgeries

One area of cosmetic surgery, which is benefiting from the advances in laser technology, is dentistry. Laser technology has proven highly effective as a treatment for the tooth discoloration, which affects people of all ages. Most people are highly self-conscious about their smiles, and can be uncomfortable in social situations when they have discolored teeth. For these who do, laser teeth whitening can be the answer to a prayer.

Laser teeth whitening can treat tooth discoloration both quickly and without discomfort, and, depending on the tooth sensitivity of the patient involved, can be completed in no more than a few sessions with the dentist. It often requires only a single visit.

Laser teeth whitening, however, are more expensive than traditional tooth whiteners, some of which can be applied at home. But for someone who wants whiter teeth as quickly as possible, the extra expense of laser teeth whitening may not matter. If cost is a consideration, other tooth whiteners have been proven to work, although they will take quite a bit longer to do what laser teeth whitening can accomplish immediately.

How Laser Teeth Whitening Works

Laser teeth whitening is similar to other tooth whitening techniques in that it uses a tooth bleaching or whitening gel. The dentist will apply the gel to the surface of the teeth and, by aiming the pulse of laser light directly at it, activate its whitening ingredients.

The result is that the patient will experience immediately whiter teeth, but the whiter teeth may be accompanied by side effects. Laser teeth whitening treatments can irritate both the teeth and the gums of individuals who are sensitive, but the irritation is a result of the whitening and should stop when the treatments are over and the teeth and gums have time to heal.

For those who have neither sensitive teeth nor gums, which will react negatively to the ingredients in the tooth whitening gel or the laser pulses, and are willing to take on the cost, laser teeth whitening will provide an instantly transformed smile!

Laser Teeth Whitening – Advantages and Disadvantages

No sector of life in the 21st century life has gone untouched by the advance of technology. And those advances have brought with them both positive and negative effects on the individual lives, which have come to depend on them.

One of the most significant breakthroughs has been in the field of laser technology, and new laser applications have been found for industrial businesses, as well as optical and cosmetic surgeries

One area of cosmetic surgery, which is benefiting from the advances in laser technology, is dentistry. Laser technology has proven highly effective as a treatment for the tooth discoloration, which affects people of all ages. Most people are highly self-conscious about their smiles, and can be uncomfortable in social situations when they have discolored teeth. For these who do, laser teeth whitening can be the answer to a prayer.

Laser teeth whitening can treat tooth discoloration both quickly and without discomfort, and, depending on the tooth sensitivity of the patient involved, can be completed in no more than a few sessions with the dentist. It often requires only a single visit.

Laser teeth whitening, however, are more expensive than traditional tooth whiteners, some of which can be applied at home. But for someone who wants whiter teeth as quickly as possible, the extra expense of laser teeth whitening may not matter. If cost is a consideration, other tooth whiteners have been proven to work, although they will take quite a bit longer to do what laser teeth whitening can accomplish immediately.

How Laser Teeth Whitening Works

Laser teeth whitening is similar to other tooth whitening techniques in that it uses a tooth bleaching or whitening gel. The dentist will apply the gel to the surface of the teeth and, by aiming the pulse of laser light directly at it, activate its whitening ingredients.

The result is that the patient will experience immediately whiter teeth, but the whiter teeth may be accompanied by side effects. Laser teeth whitening treatments can irritate both the teeth and the gums of individuals who are sensitive, but the irritation is a result of the whitening and should stop when the treatments are over and the teeth and gums have time to heal.

For those who have neither sensitive teeth nor gums, which will react negatively to the ingredients in the tooth whitening gel or the laser pulses, and are willing to take on the cost, laser teeth whitening will provide an instantly transformed smile!

Laser teeth’s whitening has become very popular, since so many people are looking to improve their smile. There are a variety of options available to help you achieve that bright white smile. Laser whitening can effectively help to reverse the discoloration process of your teeth.

Laser teeth whitening are a quick, painless solution for teeth that have become stained. . Laser teeth whitening are generally recommended for coffee drinkers and smokers, as well as those who have never used any other type of teeth whitening. In some instances, teeth can be whitened up to 10 shades lighter

Laser whitening must be done by a dental health professional. He or she will begin by removing any plaque or debris that is currently on your teeth. This helps to ensure the whitening will be effective.

After your teeth are free of plague and debris a gel is applied to your teeth. The gel is what actually whitens the teeth. However, the laser is used to speed up the process and activate the whitening gel. The crystals found in the gel absorb the light energy from the laser, which then penetrates the enamel on the teeth. This process helps to increase the whitening effect on the teeth.

Depending on the look you desire, you may need to be keep the gel on longer. If your teeth are fairly close to your desired color, then you will only need to be in the chair for a short period. Typically, it takes about an hour to accomplish a whiter smile.

One advantage of laser teeth whitening is that you only need one visit to see a visible difference in the color of you teeth. In some extreme cases, additional laser treatments may need to be done to achieve the desirable color you are looking for.

A major disadvantage of laser teeth whitening is the cost. Compared to other methods of teeth whitening, laser teeth whitening can be dramatically higher. Laser whitening generally begins around 00. However, depending on the number of treatments needed, the cost could be considerable higher.

Another disadvantage that is sometimes associated with laser whitening is sore teeth and gums. This is because of the bleach used to whiten the teeth. Generally speaking, this is only a short-term problem.

More Laser Teeth Whitening Articles