Professional teeth whitening lamp
A whitening lamp may activate or warm a peroxide gel, but the gel and dental examination determine the treatment, not light alone.
The short answer
A dentist first checks enamel, fillings, gums, and the cause of discoloration before selecting a peroxide system.

What is the direct answer?
What does this question mean?
Professional whitening uses hydrogen peroxide or carbamide peroxide to oxidize stain molecules within enamel and dentin.
What can you do next?
The lamp is positioned outside the mouth while soft tissues are protected and the gel is applied in controlled cycles.
When should you seek dental care?
See a dentist for marked sensitivity, gum burns, uneven color, or discoloration from a filling or injured tooth.
What should you ask the dentist?
Ask which peroxide is used, what the light changes, how the gums will be protected, and whether restorations will match afterward.
Frequently asked questions
Can a lamp whiten fillings?
No. Tooth-colored fillings, crowns, and veneers keep their existing shade, so replacement or reshaping may be discussed for a color match.
Does the lamp cause sensitivity?
Sensitivity depends on the gel, exposure, enamel condition, and individual response; tell the clinician if you already react to cold.
