Crest supreme professional
This is a professional teeth-whitening product line; its peroxide gel changes tooth color, but results depend on diagnosis and application.
The short answer
This is a professional teeth-whitening product line; its peroxide gel changes tooth color, but results depend on diagnosis and application. Whitening affects natural enamel and dentin, not fillings, crowns, veneers, or other restorations.
What does the peroxide gel change inside the tooth?
The product uses a peroxide compound that penetrates enamel and breaks down colored molecules. A dental professional first checks for decay, cracked teeth, gum inflammation, exposed roots, and existing restorations before choosing a whitening method.
How should you use the whitening gel safely?
Use the gel only as directed for its tray, concentration, and contact time, and keep it off the gums. Stop if sharp sensitivity or gum irritation develops, and have untreated decay or inflamed gums assessed before continuing.
Which whitening symptoms need prompt dental care?
Seek dental care for persistent sensitivity, a painful tooth, gum burns, uneven whitening, or a dark tooth. A dentist can determine whether discoloration is internal, caused by decay, or located in a restoration that whitening cannot change.
Which formulation and tray suit your teeth best?
Ask which peroxide formulation and delivery system fit your teeth, whether old restorations will mismatch afterward, and how sensitivity will be managed. Ask whether a professional examination should come before home treatment.
Frequently asked questions
Will whitening change a crown?
No. Whitening changes natural tooth structure, so a crown or filling may look different from the teeth around it afterward.
Why are my gums irritated after whitening?
Gel that contacts the gum can irritate the tissue; remove the tray, rinse, and seek advice if soreness persists.
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.