Colgate optic white pro series led
An LED whitening kit pairs a peroxide whitening gel with blue light, while the gel does most of the chemical work on tooth stains.
The short answer
Whitening gel contains a peroxide compound that can diffuse into enamel and dentine and break down colored molecules. An LED may illuminate the teeth and activate the product as directed, but it cannot whiten fillings, crowns, veneers, or other tooth-colored restorations.
Why do tray fit and gum contact matter during whitening?
Follow the product instructions exactly, keep gel off the gums, and use a properly fitting tray or strip. A dental examination is useful before whitening when teeth are sensitive, decayed, cracked, or covered by visible restorations.
What should you do if whitening causes sensitivity or irritation?
Stop the treatment and seek dental advice if you develop significant gum irritation, persistent sensitivity, or pain. Whitening does not treat decay or remove hard tartar, so those problems need dental treatment first.
When should a dentist assess pain or persistent whitening effects?
Ask which stains are likely to respond, whether existing restorations will change color, how to reduce sensitivity, and whether the gel concentration suits your teeth and gums.
What should you ask about stains, restorations, and sensitivity?
Peroxide gel is the main whitening agent.
Frequently asked questions
What happens during the dental examination?
The clinician reviews your history, examines the relevant teeth and tissues, and uses focused tests or imaging when needed.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.