Simply white teeth whitening
Simply White uses peroxide-based whitening; the method depends on the product, stain type, enamel, gums, and restorations.
The short answer
Simply White refers to peroxide-based tooth whitening products; the right method depends on the product, stain type, enamel, gums, and existing restorations.

What is the direct answer?
What does this question mean?
Tooth whitening uses a peroxide gel to oxidize some stain molecules within enamel and dentine. It does not lighten fillings, crowns, veneers, or other tooth-coloured restorations.
What can you do next?
Have the teeth and gums checked before whitening, follow the product instructions, and stop if significant sensitivity or gum irritation develops. A dentist can treat decay or gum disease first and select a custom tray or in-office method when appropriate.
When should you seek dental care?
Seek dental care before whitening if teeth hurt spontaneously, gums bleed, enamel is chipped, or one tooth has changed colour.
What should you ask the dentist?
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.
