Crest 3d white whitestrips with light professional exclusive

Light-assisted whitening strips use a peroxide strip with an activating light, but the peroxide contact with enamel is the main whitening mechanism.

The short answer

The strip holds whitening gel against the enamel, where peroxide can break down some stain molecules. A light may change the treatment process for a particular product, but it cannot whiten fillings, crowns, or veneers, and it does not correct intrinsic defects in every tooth.

What is the direct answer?

What does this question mean?

Follow the exact strip and light instructions, keep gel off the gums, and do not combine products without checking their ingredients. A dental examination is helpful when stains are uneven, a tooth is dark after trauma, or restorations are visible.

What can you do next?

Stop if gum irritation, burning, or significant sensitivity develops and seek dental advice if symptoms persist. Arrange assessment before whitening when there are cavities, enamel loss, cracks, gum disease, or pregnancy-related questions.

When should you seek dental care?

Ask what type of stain you have, whether restorations will remain a different shade, how the light is intended to be used, and which symptoms mean treatment should stop.