Crest strips professional effects
Professional whitening uses a peroxide gel under controlled conditions to lighten natural tooth enamel and dentin discoloration.
The short answer
Professional whitening uses a peroxide gel under controlled conditions to lighten natural tooth enamel and dentin discoloration. It is different from adhesive strips because the clinician examines the teeth, protects the gums, and selects the gel and exposure according to the case.
What does professional whitening change in the tooth?
Whitening changes the appearance of chromogens within enamel and dentin; it does not replace enamel or change the color of fillings, crowns, or veneers. The visible result therefore depends on the original stain and the materials already in the mouth.
What should you do before and during professional whitening?
Have the teeth and gums examined before whitening, then follow the prescribed wear time or in-office protocol exactly. Use a soft brush, avoid rubbing gel onto the gums, and report persistent sensitivity rather than repeatedly increasing exposure.
When should teeth be examined before whitening treatment?
Seek an examination before whitening if you have untreated decay, cracked teeth, gum inflammation, or marked sensitivity. Contact the clinic if pain persists, the gums develop a white or sore patch, or the result is uneven because one tooth may have a restoration or internal discoloration.
What should you ask about stains and colour matching?
Ask which stains can respond, whether existing restorations will need color matching, and what level of sensitivity to expect. Ask how the gums will be isolated and what maintenance plan fits your diet and oral hygiene.
Frequently asked questions
Are professional results the same as strips?
The method, gel delivery, protection, and suitability assessment differ, so results are case-specific.
Can whitening fix a dark filling?
No. A filling keeps its material color and may need replacement to match newly lightened teeth.
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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.