Colgate professional teeth whitening
Professional whitening products use peroxide under controlled instructions; the dentist first checks stains, enamel, gums, decay, and restorations.
How does professional peroxide whitening work?
Professional whitening products use peroxide under controlled instructions; the dentist first checks stains, enamel, gums, decay, and restorations.
What materials can professional whitening systems use?
A professional whitening system may use carbamide peroxide or hydrogen peroxide in trays or an in-office application. The gel changes the colour of natural tooth structure, but it cannot change the shade of fillings, crowns, or veneers.
How should professional whitening instructions be followed?
Ask which formulation and concentration are intended, protect the gums as directed, and use only the supplied timing and application method. Treat cavities, cracks, or inflamed gums before whitening and discuss sensitivity history.
When should sensitivity or pain be assessed first?
Arrange an examination for severe sensitivity, gum burns, a single dark tooth, untreated decay, or pain rather than starting a whitening course.
What should you ask about diagnosis and treatment options?
Ask what diagnosis the examination supports, which treatment materials or instruments will be used, what alternatives exist, and how progress or healing will be checked.
Frequently asked questions
Can this be diagnosed from a photograph alone?
A photograph can show a visible change, but examination and sometimes imaging are needed to identify the cause.
What if the symptom keeps returning?
Recurring symptoms deserve a dental assessment because repeated inflammation, pain, or appliance problems can have a treatable underlying cause.
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.