Hi smiles teeth whitening
HiSmile is a consumer whitening brand; its products use different ingredients and should be judged by their formulation and dental condition.
The short answer
HiSmile is a consumer whitening brand; its products use different ingredients and should be judged by their formulation and dental condition. Whitening products act on natural tooth structure, not fillings, crowns, or veneers.
Why can natural teeth look darker or more yellow?
Tooth colour comes from enamel translucency and dentine beneath it, plus surface stains from foods, drinks, tobacco, or plaque. Peroxide-based products can oxidize some internal pigments, while non-peroxide products may mainly affect surface deposits.
How should you check a whitening product before use?
Check the ingredient list and use the product only as directed. A dentist can examine decay, gum recession, cracks, and existing restorations before choosing professional whitening, a custom tray, stain removal, or no whitening.
When should you stop whitening and book an examination?
Stop and arrange an examination if whitening causes persistent pain, gum irritation, or sensitivity, or if one tooth changes colour. A dark single tooth may have an injured or non-vital pulp rather than a simple surface stain.
What should you ask about whitening and existing restorations?
Ask which type of discoloration you have, whether existing restorations will match afterward, which ingredient is planned, and how sensitivity will be managed.
Frequently asked questions
Will whitening remove fillings?
No. Fillings, crowns, and veneers do not bleach like natural enamel.
Why are my teeth sensitive after whitening?
Whitening agents can temporarily irritate dentine or the pulp, especially where enamel is thin or roots are exposed.
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.