Hollywood teeth whitening machine
Professional machine whitening uses peroxide gel with a controlled light or activation system, while the gel performs the bleaching.
The short answer
In-office whitening protects the gums, applies peroxide to enamel, and follows a controlled protocol with or without a lamp.

What does the dentist check before applying whitening gel?
The clinician checks decay, cracks, gum inflammation, enamel defects, and restorations before isolating soft tissue and applying gel in timed intervals.
What problems should be reviewed before or after whitening?
Untreated decay, exposed roots, active gum disease, severe sensitivity, or chemical burns require dental review before or after whitening.
What should you ask about the gel and whitening light?
Ask what gel system is used, whether the light is necessary, and how restorations will look afterward.
Frequently asked questions
What happens during controlled in-office teeth whitening?
In-office whitening protects the gums, applies peroxide to enamel, and follows a controlled protocol with or without a lamp.
When should I get help?
Ask what gel system is used, whether the light is necessary, and how restorations will look afterward.
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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.
