Before and after colgate whitening pen
A whitening pen applies peroxide-based gel, but the visible change depends on the stain, enamel, application, and lighting.
What is the direct answer?
A whitening pen applies peroxide-based gel, but the visible change depends on the stain, enamel, application, and lighting.
What does this question mean?
Peroxide can alter some discoloration in natural teeth. Fillings, crowns, veneers, and bonding do not change color in the same way.
What can you do next?
Photographs can differ because of lighting, camera exposure, tooth dryness, and angle. Results also vary with stain chemistry and contact time.
When should you seek dental care?
Follow the label, keep gel off the gums, and stop for marked sensitivity or irritation. See a dentist if one tooth is dark or painful.
What should you ask the dentist?
Ask what caused the discoloration and whether existing restorations will match afterward.
Frequently asked questions
Will a pen whiten a filling?
No. A filling keeps its existing shade, so whitening can reveal a mismatch.
Why did the teeth look lighter immediately?
Drying can temporarily change the appearance until enamel returns to normal moisture.