Dental Nation
Question and answer

Tooth bleaching

Tooth bleaching is a whitening treatment that uses peroxide gel to lighten some discoloration after the teeth and gums have been assessed.

The short answer

Bleaching is the chemical lightening of natural tooth structure, usually with hydrogen peroxide or carbamide peroxide. The gel breaks down stain compounds in enamel and dentin, but it does not change the color of fillings, crowns, veneers, or bonding.

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What is the direct answer?

What does this question mean?

A dentist can examine for decay, cracks, gum disease, exposed roots, and restorations before selecting custom trays, an in-office protocol, or both. Follow the prescribed wear time, use the recommended gel amount, and report sensitivity rather than extending treatment yourself.

What can you do next?

Get an examination if discoloration affects one tooth, follows an injury, or comes with pain. Stop and contact the dental team for severe sensitivity, gum burns, or symptoms that persist after the course.

When should you seek dental care?

Ask what type of discoloration is present and which surfaces will not whiten. Ask about tray fit, gel strength, expected sensitivity, replacement of mismatched restorations, and maintenance instructions.

Frequently asked questions

What is the main factor to consider?

Can bleaching remove every stain?