Professional teeth whitening procedure
Professional whitening uses a peroxide gel under dental control to lighten stains after an oral examination.
The short answer
A professional teeth-whitening procedure uses a peroxide gel applied to the visible tooth surfaces, with the gums protected and the treatment monitored by a dental professional.

What types of staining can professional whitening address?
Professional whitening is a cosmetic treatment for natural enamel and dentine that have become darker from food, drinks, tobacco, age, or certain medicines. It does not change the colour of fillings, crowns, veneers, or other restorations.
What does the dentist check before whitening begins?
A dentist first checks for cavities, gum inflammation, exposed root surfaces, cracks, and restorations, then records the starting shade. The procedure may involve gum barriers and several controlled applications of hydrogen peroxide or carbamide peroxide, followed by a shade check and advice about sensitivity.
When should whitening wait for dental treatment?
Arrange an assessment before whitening if you have tooth pain, untreated decay, bleeding gums, enamel defects, or a restoration in the smile zone. Seek prompt care for facial swelling, severe pain, or a whitening reaction that persists after the product is removed.
Which whitening details should you discuss with your dentist?
Ask which stains are likely to respond, whether any fillings or crowns will remain visibly different, what peroxide system will be used, and how existing sensitivity, gum recession, decay, or enamel wear changes the plan.
Frequently asked questions
Can home care solve this problem?
A dentist first checks for cavities, gum inflammation, exposed root surfaces, cracks, and restorations, then records the starting shade.
What will a dentist check?
Ask which stains are likely to respond, whether any fillings or crowns will remain visibly different, what peroxide system will be used, and how existing sensitivity, gum recession, decay, or enamel wear changes the plan..
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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.
