What does the number sixteen mean in whitening treatment?
Philips Zoom 16 refers to a peroxide whitening gel concentration used in a supervised whitening system, with comfort depending on individual teeth.
How does whitening concentration affect the treatment?
The number identifies the formulation or concentration used in a whitening protocol, while the clinical result also depends on stain type, exposure time, trays or barriers, and the condition of enamel and gums. Whitening is a chemical oxidation process involving peroxide.
What should you do before and after supervised whitening?
Have the teeth and gums examined before treatment, then follow the prescribed wear time and aftercare. Use the supplied trays or protective barriers correctly, avoid spreading gel onto the gums, and report sensitivity instead of increasing exposure.
Which whitening symptoms require a dental review?
Arrange review for pain, persistent sensitivity, gum burning, uneven whitening, or a dark tooth with a history of trauma or root canal treatment. A dentist should assess active decay, cracks, leakage, or gum recession before whitening.
Is this concentration suitable for your teeth and restorations?
Ask whether this concentration suits your teeth, how gum protection will be provided, and how restorations will be handled. Ask what result is realistic for your stain and what to do if sensitivity develops.
Frequently asked questions
Does the number 16 mean sixteen treatments?
No. It refers to a gel formulation or concentration used within a whitening protocol, not a treatment count.
Why are my teeth still uneven after whitening?
Different stains and restorations respond differently, and the dentist may need to manage the cause or replace mismatched restorations.
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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.

