Crest 3d white 1 hour express before and after
Crest 3D White 1 Hour Express uses peroxide to lighten some stains, while the visible change depends on your teeth and stain type.
The short answer
Crest 3D White 1 Hour Express uses peroxide to lighten some stains, while the visible change depends on your teeth and stain type. It cannot whiten fillings, crowns, or veneers.
How does the strip hold peroxide against your teeth?
The strip holds a peroxide whitening gel against the front tooth surfaces. Coffee, tea, and tobacco stains may respond, while discoloration inside a tooth may need a different clinical approach.
How should you use the strips for the stated time?
Check the package directions, keep the strip on the intended surfaces for the stated time, and avoid placing gel on the gums. Do not use whitening over untreated cavities, cracked teeth, or inflamed gums without an examination.
Which reactions after whitening need dental care?
Arrange dental care for sharp sensitivity, gum burning, uneven darkening, or pain that remains after the strip is removed. A dark single tooth needs assessment for decay, trauma, or a problem inside the tooth.
What should you ask about stains and matching restorations?
Ask whether the stain is on the surface or within the tooth and whether restorations will need replacement to match. Ask about a custom tray or in-office option if strips do not suit your mouth.
Frequently asked questions
Do before-and-after results look the same for everyone?
No. Results vary with the starting shade, enamel, stain source, and contact with the strip.
What if the strip makes my gums sting?
Remove it, rinse, and obtain advice before using another application.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.