Teeth whitening, also called bleaching enhances the brightness of your natural teeth. This procedure is not for everyone. If you have multiple white fillings in your front teeth, you should not whiten your teeth.Also
sensitive teeth or discolored, as well as teeth with white spots, can not be bleached. Any previous dental restoration like a crown, bridge, implant or inlays can not get any brighter with teeth whitening gels.
The lifespan of whitened teeth can range from 4-12 months, depending on the type of treatment used and your consumption of food and drink that can easily stain teeth (such as blueberries, coffee, and tea).
My Tehran Dentist offers both Zoom whitening as well as BT cool. To get the best results our in-house dental lab will also give you one upper tray and lower tray with home kit gels to update the whitening at home when your teeth get yellow or discolored again.