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Frequently Asked Questions on Teeth Whitening


What is laser teeth whitening all about ?

Laser teeth whitening (also known as light-activated teeth whitening) is one of the newest - and more expensive - methods available for teeth whitening. Laser treatment involves using a beam of special laser light on the desired areas of the mouth. Laser teeth whitening is popular because the procedure only takes an hour, and results can be seen instantly. The treatment begins by using bleaching agents like hydrogen peroxide gel or carbamide peroxide gel on the tooth enamel. The gel is then activated using a controlled laser light. The result is a faster, more effective procedure with results of up to a 10 shade improvement.

Below are the top three laser/light-activated teeth whitening procedures available on the market:

View all laser whitening procedures and reviews here.

There are two schools of thoughts on light-activated whitening. Some studies show that it works and some do not. Many respected researchers in dentistry, including CRA (Clinical Research Associates), have performed split-arch, showing that bleaching lights are of no benefit. A split-arch study is when you do one treatment on the left side of a patient's mouth and another treatment (or no treatment) on their right side. In this particular CRA study, bleaching gels were placed on both sides of a patient's mouth, but only one side was exposed to a bleaching light. The result? No difference from right side to left side. The study showed that it was only bleaching gel that caused the whitening. However, there are studies out there by credible institutions that show laser whitening does actually work.

Related Articles
The Controversy: Are bleaching lights necessary in professional laser teeth whitening treatments?

Am I really whitening? Tooth Dehydration and Laser Tooth Whitening

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1. - Laser Whitening Guide - 10/29/2008
I would be interested in finding out some more about the studies you mentioned, especially those that seem to dispute the effectiness of laser teeth whitening. This is the first I've heard that it might not work, and at $500-$1000 per treament I'd like to be more sure about its effectiveness.
2. - Dmitri - 03/30/2011
LED light don't work. I am sorry,but it's common sense. Light(specifically blue light in this case) can not alter or speed up the bleaching process. It dosn't make any sense scientifically! It's another gimmick made by a few people to make a few bucks, just like homeopathy and p-enlargment pills. All of those were PROVEN MANY times to be 100% not effective,yet some still believe in miracles.
3. - Dianne - 05/28/2011
I just want to know which is best zoom teeth whitenining or lazer lighting. Also any suggestions of where to go that is cost effective and good?
4. - Adrian - 09/09/2011
Do you know of any specific dangers to the patient in the laser whitening process? Is it as safe as more established methods?
5. - Don - 09/13/2011
Got laser whitening today in Thailand cost is between £100-£160 seems ok not as White as I was expecting but still not bad only problem a small part of my gum has gone White to which I'm going to find out if it will go or stay.
6. - Sean Thomson - 06/01/2012
I,m thinking about getting my teeth laser whiteing treatment, I have a front tooth that's a crown can this be treated by laser or do I need to replace with another crown to match after the treatment
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8. - hgvhg - 06/11/2014
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9. - meng - 06/11/2014
Nice article, thanks for the information. Itís very complete information. I will bookmark for next reference.

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