Overview
Tooth whitening enhances the brightness of natural teeth, but it's not for everyone. Discuss it with your dentist before you take action, especially if you have:
The lifespan of teeth bleaching 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).
To keep your teeth their whitest without undergoing tooth whitening treatment, practice good oral hygiene.