Patient reviewing a dental shade guide

Dental Whitening: What to Know Before You Start

Whitening products vary in strength, application method, and supervision. Before whitening, it is helpful to know whether discoloration is likely to respond and whether your teeth and gums are healthy.

Natural teeth and restorations respond differently

Whitening changes natural enamel but does not bleach crowns, veneers, or tooth-colored fillings.

Overuse can increase sensitivity

Follow product directions and dental recommendations. More product or longer exposure is not automatically better.

Children and teens need professional guidance

Whitening decisions for younger patients should be discussed with a dentist based on age, tooth development, and the cause of discoloration.


This article is general dental education and is not a diagnosis or a substitute for an examination. If you have pain, swelling, trauma, or another concern, contact a dental or medical professional as appropriate.

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