How long can you leave crest white strips on

Whitening strips carry a peroxide gel on a flexible carrier that contacts the front tooth surfaces. The label time is matched to that formulation, while excess contact can increase gel leakage and tooth or gum sensitivity.

Whitening strips carry a peroxide gel on a flexible carrier that contacts the front tooth surfaces. The label time is matched to that formulation, while excess contact can increase gel leakage and tooth or gum sensitivity.

The exact material, location, exposure, and symptoms determine what the finding means clinically.

Check the exact product instructions, apply strips to clean, dry teeth as directed, and remove them at the stated time. Do not sleep in them or use them over untreated decay, gum inflammation, or a loose restoration without dental guidance.

Keep the area clean and follow the product or appliance instructions rather than increasing exposure or pressure.

Stop and seek advice if you develop strong or lingering sensitivity, sore or pale gums, blistering, or pain. A dentist should assess uneven colour, a dark single tooth, or whitening that fails to match restorations.

A clinician can examine the tissues directly and decide whether imaging, cleaning, restoration, or another treatment is needed.

Ask whether the product fits your enamel and gums, what to do about sensitivity, and whether fillings, crowns, or veneers will change colour.

Ask what the examination found, which options address the cause, and what changes should prompt a faster review.