Dental question about observed-topic:tooth-whitening

Stains may be on the enamel surface from foods, drinks, tobacco, or plaque, or inside the tooth after aging, trauma, or medication exposure. Crowns, veneers, fillings, and bonding do not bleach, so their shade may differ after treatment. A dental examination should identify cavities, cracks, gum disease, exposed roots, and the cause of darkening before whitening. The clinician may clean surface deposits, protect the gums, and select a custom tray or in-office application with controlled gel contact.

A dental examination should identify cavities, cracks, gum disease, exposed roots, and the cause of darkening before whitening. The clinician may clean surface deposits, protect the gums, and select a custom tray or in-office application with controlled gel contact. Seek dental care before whitening when a tooth is painful, darkening on its own, broken, or sensitive to temperature, or when the gums bleed or swell. Urgent assessment is needed for facial swelling, fever, or trouble swallowing.

Seek dental care before whitening when a tooth is painful, darkening on its own, broken, or sensitive to temperature, or when the gums bleed or swell. Urgent assessment is needed for facial swelling, fever, or trouble swallowing. Ask what caused the stain, whether restorations will need shade matching later, which peroxide system is proposed, how sensitivity will be managed, and what result is realistic for your tooth color.

Ask what caused the stain, whether restorations will need shade matching later, which peroxide system is proposed, how sensitivity will be managed, and what result is realistic for your tooth color.