Before and after pola whitening
Pola whitening uses a peroxide-based gel to break down stain molecules within the tooth surface and dentin. Before-and-after changes depend on the origina
The short answer
Pola whitening uses a peroxide-based gel to break down stain molecules within the tooth surface and dentin. Before-and-after changes depend on the original shade, the cause of discoloration, exposure time, and whether fillings or crowns are present.
What does a visible whitening result actually represent?
The visible result is a change in natural tooth color, not a coating placed over the teeth. Peroxide diffuses through enamel and oxidizes chromogenic compounds; restorations such as composite and porcelain do not bleach in the same way as natural enamel.
What should your dentist check before whitening?
Have the teeth, gums, cavities, exposed roots, and existing restorations checked before whitening. Follow the prescribed gel amount and wear time, keep the trays clean, and pause for dental advice if marked sensitivity or gum irritation develops.
When should you delay whitening and seek dental care?
Seek dental care before whitening when teeth are painful, cracked, decayed, or sensitive, or when gums bleed easily. An examination is also useful when one tooth is dark, because trauma or pulp disease may need treatment rather than cosmetic bleaching.
What whitening result is realistic for your discolouration?
Ask which type of discoloration is present and what shade change is realistic for your teeth. Ask how existing fillings, crowns, or veneers will look afterward, how sensitivity will be managed, and whether a cleaning or restorative treatment should come first.
Frequently asked questions
Will whitening remove every stain?
It works best on some external and internal stains; deep, medication-related, developmental, or restoration-related discoloration may need another approach.
Why can teeth feel sensitive afterward?
Peroxide can temporarily move through enamel and irritate dentin fluid pathways, producing sensitivity that should be discussed if pronounced.
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.