Natural home teeth whitening
At-home whitening uses a peroxide product in a controlled tray, while acidic kitchen remedies can erode enamel and irritate gums.
The short answer
The home approach to whitening uses a dentist-selected or labelled peroxide product as directed; abrasive or acidic household substances can damage enamel and gums.
What is the direct answer?
What does this question mean?
Peroxide molecules diffuse through enamel and dentine and break down some coloured compounds. Surface stain may improve with professional cleaning, whereas deeper or age-related colour requires a whitening regimen and a check for cavities, cracks, gum recession, or sensitivity.
What can you do next?
Use only the stated amount and contact time, keep gel off the gums, and do not extend the course because the teeth look slow to change. Pause and seek advice for significant sensitivity, gum whitening or burning, uneven colour, or a loose tray.
When should you seek dental care?
Have a dental examination before whitening if you have untreated decay, cracks, gum disease, exposed roots, severe sensitivity, or extensive restorations. Seek care for persistent pain, blistering, marked gum irritation, or a colour change in one tooth.
What should you ask the dentist?
Ask whether the discolouration is surface stain, internal tooth colour, decay, trauma, or a non-vital tooth. Ask which concentration and tray design fit your teeth, how restorations will match, and what to do if sensitivity develops.
Frequently asked questions
Can baking soda whiten teeth?
It may remove some surface stain by abrasion, but aggressive or frequent abrasion can wear enamel and does not whiten deep tooth colour.
Why did one tooth stay dark?
A single dark tooth can reflect trauma, pulp changes, decay, or a restoration and should be examined before further whitening.