What is the direct answer?
Over-the-counter whitening includes strips, gels, toothpastes, rinses, and lights, with results depending on the stain and contact with the tooth.
What does this question mean?
Peroxide oxidises some stain compounds, while toothpaste mainly removes surface deposits; fillings, crowns, veneers, and implants retain their colour.
What can you do next?
Use one method as directed, keep gel off the gums, and do not whiten to mask pain, decay, or a dark tooth after trauma.
When should you seek dental care?
Stop for sharp or persistent sensitivity, gum irritation, uneven colour, or a single dark tooth and arrange assessment.
What should you ask the dentist?
Ask whether the stain is external or internal and which option best protects teeth and gums.
Frequently asked questions
Can this have more than one cause?
Yes. An examination distinguishes similar dental and oral causes.
What should I bring to an appointment?
Bring when it began, triggers, visible changes, medicines, and recent dental treatment.

