Take home dental whitening
Take-home dental whitening uses custom or dentist-provided trays containing a peroxide gel that is worn for a prescribed period to lighten natural teeth g
The short answer
Take-home dental whitening uses custom or dentist-provided trays containing a peroxide gel that is worn for a prescribed period to lighten natural teeth gradually.

What is the direct answer?
What does this question mean?
Carbamide peroxide or hydrogen peroxide releases reactive oxygen that breaks down some stain molecules in enamel and dentine. The trays are made to control gel contact, but they do not whiten fillings, crowns, veneers, or bonding material.
What can you do next?
A dentist first checks for decay, cracks, gum disease, recession, and sensitivity, then records shade and gives tray and gel instructions. Apply a small amount to each tooth space, remove overflow, and follow the stated wear schedule.
When should you seek dental care?
Seek care for severe or lasting sensitivity, gum burning, ulcers, or uneven colour. Do not start elective whitening over untreated decay or inflamed gums, and have a dark single tooth examined.
What should you ask the dentist?
Ask which gel concentration and wear schedule suit your teeth. Ask how restorations will look afterward and what maintenance or sensitivity plan is appropriate.
Frequently asked questions
Could this symptom have more than one cause?
Carbamide peroxide and hydrogen peroxide act on stain molecules within enamel and dentine.
What is the practical next step?
A pre-treatment examination checks decay, cracks, gum disease, recession, and sensitivity.
