Philips zoom nite white 16 carbamide peroxide
Night whitening gel using 16% carbamide peroxide should be used only as directed after checking your teeth and gums.
The short answer
Night whitening gel using 16% carbamide peroxide should be used only as directed after checking your teeth and gums. A dentist should confirm that cavities, leaking fillings, gum inflammation, and exposed roots are addressed before whitening.

How does carbamide peroxide reach and affect tooth stains?
Carbamide peroxide breaks down into hydrogen peroxide and urea, allowing peroxide to diffuse into tooth staining. A custom tray holds gel against the enamel and should keep it away from the gums.
How can you place the gel safely in your whitening tray?
Have the tray fit checked, place only the instructed amount in each tooth compartment, and wipe away gel that reaches the gumline. Follow the product schedule and stop if marked sensitivity, gum soreness, or tissue whitening develops.
When should you delay whitening and seek dental advice?
Seek dental advice before use if you have untreated decay, cracked teeth, gum disease, enamel defects, or strong sensitivity. Contact the dental team if pain persists after removing the tray or if gel contacts the eye or is swallowed in excess.
What should you ask about gel strength and tray fit?
Ask whether the concentration and tray fit suit your enamel, restorations, and gum condition. Ask how long each application should remain in place and how existing crowns or fillings will appear beside whitened enamel.
Frequently asked questions
Can whitening gel whiten fillings?
No, peroxide changes natural tooth colour but does not change the shade of fillings, crowns, or veneers.
What if the gums turn white?
Remove the tray and rinse; contact the dental team if soreness or colour change continues.
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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.
