LED teeth whitening session and no change. Should i go for another session again?

Question

I have completed two sessions of LED whitening for the teeth some months ago. I was instructed to not drink coffee or so for 4 days. However, i was suprised that after just 4-7 days my teeth retained just as yellow as they were before. Is that normal?

Thomas Dey, BDS, MSc · Answer

There are many different kinds of LED whitening. Unfortunately, many are offered from Beauty Therapists without the correct training or understanding of teeth. If your treatment was done at such centre then that could be a possible reason. Other than this, if it was a dentist, you need to speak to them as possibly their material batch numbers need to be checked as you are correct - it should last much longer. Kind regardsThomas Dey, BDS, MSc

Kourosh Maddahi, DDS · Answer

Hi:Normally we do three sessions of LED whitening in our office.  You should definitely try another session  and then decide if whitening is not working.Best,Dr. Maddahi

Neal Nealis, DDS (retired) · Answer

I've been whitening teeth for decades and have used a variety of methods. The most reliable method is wearing custom made bleaching trays at home. Teeth have varying porosities.  My experience with power whitening is that the effect is mostly an illusion of disrupting the surface of the enamel which makes white light reflect off creating the appearance of whiteness, but as the surface rehydrates over a two week period the color returns. At home whitening systems using carbamide peroxide has proven to last for years but takes ten to fourteen sessions on the average.

LED teeth whitening session and no change. Should i go for another session again?

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