Smilelab flash speed whitening strips
Whitening strips contain peroxide that oxidizes some stain molecules on enamel. Use depends on enamel, gums, fillings, crowns, and the product instructi...
The short answer
Whitening strips contain peroxide that oxidizes some stain molecules on enamel. Use depends on enamel, gums, fillings, crowns, and the product instructions.
How do flash speed whitening strips change tooth colour?
Whitening strips are flexible plastic trays or films coated with a peroxide gel. The gel contacts the front surfaces of teeth and can cause temporary sensitivity or gum irritation if it touches soft tissue.
What causes stains to remain on or within the teeth?
Stains on enamel may be surface deposits or deeper colour changes within tooth structure. Existing fillings, bonding, crowns, and veneers do not bleach like natural enamel, so colour matching matters.
Read the label, keep the strip on only for the stated interval, and keep gel off the gumline. Stop if burning or significant pain develops, and do not use it over untreated decay or irritated gums.
How can you use whitening strips more safely?
Read the label, keep the strip on only for the stated interval, and keep gel off the gumline. Stop if burning or significant pain develops, and do not use it over untreated decay or irritated gums.
Arrange a dental examination for persistent pain, a gum burn, uneven whitening, or a tooth that darkened after an injury. A dentist can check enamel, pulp health, restorations, and the cause of discolouration.
When should whitening strip problems be checked by a dentist?
Arrange a dental examination for persistent pain, a gum burn, uneven whitening, or a tooth that darkened after an injury. A dentist can check enamel, pulp health, restorations, and the cause of discolouration.
Ask whether the discolouration is external or internal, whether restorations will need replacement for colour matching, and whether a peroxide product is appropriate for your enamel and gums.
What should you ask about whitening your teeth safely?
Ask whether the discolouration is external or internal, whether restorations will need replacement for colour matching, and whether a peroxide product is appropriate for your enamel and gums.
Whitening strips are flexible plastic trays or films coated with a peroxide gel. The gel contacts the front surfaces of teeth and can cause temporary sensitivity or gum irritation if it touches soft tissue.
Frequently asked questions
Can whitening strips change fillings or crowns?
Natural enamel can lighten, but fillings, crowns, and veneers do not bleach.
When should I arrange an examination?
Arrange a dental examination for persistent pain, a gum burn, uneven whitening, or a tooth that darkened after an injury. A dentist can check enamel, pulp health, restorations, and the cause of discolouration.
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.