Smile & alignment

Teeth Whitening

Understand bleaching options, likely limitations and sensitivity.

A tooth shade guide beside a smile during a dental consultation
AI-generated conceptual illustration. Anatomy and equipment are simplified.

What it does

Peroxide-based whitening lightens stains in natural teeth. It does not change the shade of existing crowns, veneers or fillings.

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Watch the explanation

See the procedure in motion

How tooth whitening works

American Dental Association

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How tooth whitening works

An ADA dentist explains bleaching and compares whitening approaches used at home and in a dental office.

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What usually happens

The sequence and number of visits depend on the individual case.

  1. Assess the color

    Discuss the cause of discoloration and whether whitening is likely to help.

  2. Choose an approach

    Compare office treatment, dentist-provided home trays and suitable over-the-counter products.

  3. Follow directions

    Use the selected product only as directed.

  4. Review

    Discuss sensitivity and whether existing restorations now look different.

Options to discuss

In-office

A dentist provides the treatment.

At-home trays

The dentist supplies a plan for use at home.

Over-the-counter

Products and results vary.

Benefits, limits & trade-offs

Sensitivity and gum irritation can occur. Some discoloration responds poorly; more whitening is not always the solution.

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Questions for your dentist

  • Will my type of discoloration respond?
  • Will whitening leave a mismatch with my restorations?
  • What should I do if sensitivity develops?

Take the next step

Look for offices offering this care

Search for teeth whitening in your area, then confirm the service with the office.

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Before you book

  • Confirm that the office offers the specific procedure or technology you want to discuss.
  • Ask who performs the treatment and about their relevant training and experience.
  • Discuss whether it suits your situation, alternatives, the total fee and follow-up care.