Professional whitening can lighten many natural teeth, but results depend on the type of staining, enamel condition, sensitivity, existing fillings or crowns, and habits such as coffee, tea, wine, or smoking. A dentist should check that whitening is appropriate before treatment.
Which whitening option is best?
In-chair whitening is faster, while custom take-home trays allow gradual whitening with dentist guidance. Over-the-counter products can help mild stains but are less customized.
What does whitening not change?
Whitening does not lighten crowns, veneers, bonding, or fillings. If front teeth have visible dental work, the dentist should discuss shade matching before whitening starts.
Is sensitivity normal?
Temporary sensitivity can happen. A dentist can adjust product strength, timing, and home-care recommendations to reduce risk.