What is the direct answer?
Keep whitening strips on only for the time stated on their own package, because peroxide exposure beyond that can irritate gums and increase sensitivity.
What does this question mean?
Whitening strips are thin plastic carriers coated with a peroxide gel that contacts enamel.
What can you do next?
Apply them to clean, dry teeth as directed, keep gel off the gum margin, and stop if significant sensitivity or tissue irritation develops.
When should you seek dental care?
Seek dental advice for persistent sensitivity, gum burns, uneven color, cavities, cracks, or restorations that do not whiten.
What should you ask the dentist?
Ask which product strength and wear time fit your enamel, fillings, gum margins, and sensitivity history.
Frequently asked questions
Can this be treated at home?
Apply them to clean, dry teeth as directed, keep gel off the gum margin, and stop if significant sensitivity or tissue irritation develops.
What would a dentist check?
Ask which product strength and wear time fit your enamel, fillings, gum margins, and sensitivity history.

