Teeth whitening is safe and over-whitening cannot occur unless you go to extreme and ignore the instructions. In addition, there are few reasons to whiten your teeth too much: Teeth will whiten only to a certain point and after that they won’t whiten any more because teeth aren’t naturally meant to be completely white.

Some people feel sensitivity in their teeth after home teeth whitening. If this becomes a problem, it is better to reduce the intervals between teeth whitening or use toothpaste for sensitive teeth. The factors that cause stains in teeth are genetic, certain medicine, aging, overfluoridated water, certain colorants in coffee, tee and sodas.

Home teeth whitening works by oxidizing proteins that attach to your teeth. One thing good to keep in mind in home teeth whitening is that after removing the trays do not drink or eat anything coloured such as cola drinks and coffee because this affects the effectiveness of the teeth whitening procedure. The good thing is that if you think you’ve over-whitened your teeth, just wait for a couple of months and they will naturally darken to a less white.

A couple signs of over-whitening are that first of all you will start to have major sensitivities with your teeth. What you are actually doing if you are over-whitening is that you are drawing out all the nutrients that are supplied to your teeth so with removing the nutrients teeth get more sensitive to cold air. You can also whiten your teeth so severe that your teeth become translucent from the edges. So if you start to notice these signs it is probably a good time to reduce your teeth whitening.