Does teeth whitening make your teeth really white?

After a whitening treatment, the teeth are generally whiter from 3 to 4 shades. If the teeth to be treated are in the white or yellow shades, the treatment will have a better result than if the teeth were brown or gray. These 2 colors are difficult to bleach. In addition, if the teeth are yellow due to medications such as antibiotics or a disease, it is more difficult to make them completely white but it is possible to gain some hues.

Do teeth remain white for a long time after blanching? 

No bleaching technique can guarantee that the teeth will remain white for a long time and especially not for eternity. Often, your teeth can remain white for up to 2 years. After this period, the teeth will rejuvenate again but will be still whiter than before the treatment.You will have to repeat a Best Dental Treatment in Dubai if you wish. New whitening will make your teeth white as after the initial treatment! It is therefore an operation that lasts in time but must be renewed regularly. 

What are the whitening techniques and which ones are the best? 

For a treatment of all teeth, there is only one technique which consists in applying a bleaching agent to the outside of the teeth. The product will penetrate the teeth and will bleach from inside see more info here. There are 2 methods for penetrating the bleaching product.