In office bleaching
In-office bleaching uses a dentist-selected peroxide gel on natural teeth, with the gums protected and the treatment monitored for sensitivity and sof
The short answer
In-office bleaching uses a dentist-selected peroxide gel on natural teeth, with the gums protected and the treatment monitored for sensitivity and soft-tissue irritation.

What is the direct answer?
What does this question mean?
The gel contains hydrogen peroxide or a compound that releases it, allowing oxidizing molecules to break down some stain within enamel and dentin. Crowns, fillings, and veneers do not bleach like natural tooth structure.
What can you do next?
The dentist examines for decay, cracks, gum inflammation, and exposed dentin, records the starting shade, protects the gingiva, applies the gel for controlled intervals, and reassesses the shade. Follow the aftercare instructions and report sensitivity.
When should you seek dental care?
Seek care before bleaching if you have untreated decay, ulcers, gum disease, severe sensitivity, or a single dark tooth. Call the clinic if gel causes persistent gum pain or sensitivity that does not settle.
What should you ask the dentist?
Ask what type of peroxide is used, whether existing restorations will match afterward, and what treatment is needed for a darkened tooth. Ask how sensitivity and gum exposure will be managed.
Frequently asked questions
Can home care fix the underlying dental problem?
The dentist examines for decay, cracks, gum inflammation, and exposed dentin, records the starting shade, protects the gingiva, applies the gel for controlled intervals, and reassesses the shade.
What symptom means I should not wait?
Seek care before bleaching if you have untreated decay, ulcers, gum disease, severe sensitivity, or a single dark tooth.
