Smile science harley street professional teeth whitening treatment
Professional whitening uses peroxide gel to lighten natural teeth after checking enamel, gums, stains, and restorations.
The short answer
Professional whitening is a cosmetic treatment that uses hydrogen peroxide or carbamide peroxide to break down stain molecules within enamel and dentine. A dental examination comes first because cavities, gum inflammation, cracks, and restorations can affect the plan and the result.
How is a professional whitening session planned?
The clinician records the starting shade, checks the teeth and gums, protects soft tissue, and applies the selected gel for controlled periods. Sensitivity can be managed by adjusting concentration or exposure, and whitening does not change the color of crowns, fillings, veneers, or bonding.
What should you do before professional whitening?
Have a dental assessment before whitening if you have pain, untreated decay, bleeding gums, enamel defects, or a restoration in the visible smile. Contact the practice if severe sensitivity, gum burns, or persistent irritation follows treatment.
Which whitening details should you discuss with your dentist?
Ask which stains are likely to respond, whether visible restorations will mismatch, what gel and exposure schedule will be used, and how sensitivity will be managed. Ask how the treatment plan differs from an over-the-counter product.
Frequently asked questions
Will whitening change a crown or filling?
Whitening changes natural tooth structure, so an existing crown, filling, veneer, or bonding may remain its original shade.
What should I discuss before cosmetic treatment?
Discuss existing restorations, untreated disease, sensitivity history, the gel, exposure plan, and likely shade limits.
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.