Glo science whitening
GLO whitening uses a peroxide gel with a mouthpiece light; suitability depends on tooth health, stain type, restorations, and sensitivity.
The short answer
GLO whitening uses a peroxide gel with a mouthpiece light; suitability depends on tooth health, stain type, restorations, and sensitivity. The gel acts on stain molecules in natural enamel and dentine, while crowns and fillings retain their existing shade.
What is light-assisted GLO whitening designed to do?
This is a light-assisted whitening system rather than a treatment for decay or enamel defects. Yellow or brown surface and internal stains may respond differently, and a grey intrinsic stain may require another cosmetic plan.
How should you prepare and use the whitening gel?
Have the teeth and gums examined before using the gel, and follow the product instructions for placement and contact time. Keep gel off the gums, stop if burning occurs, and discuss desensitising toothpaste if cold sensitivity is a concern.
Which dental problems need assessment before whitening?
Seek dental assessment before whitening if you have untreated decay, cracks, gum disease, exposed roots, or unexplained pain. Persistent sensitivity or gum irritation after use warrants review of the teeth and the whitening technique.
Will peroxide whitening suit your stain and existing restorations?
Ask whether your stain is suitable for peroxide whitening and whether restorations will need colour matching. Ask how the light and gel are used, how sensitivity is managed, and whether trays or another option would be more appropriate.
Frequently asked questions
Can GLO whiten a crown?
No. The natural teeth may lighten while the crown remains its original shade, so colour matching should be planned.
Why do gums sting during whitening?
Gel contacting gingival tissue can irritate it, particularly when the barrier or application is imperfect.
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.