Zoom home bleaching
Home bleaching uses dentist-provided trays and peroxide gel; the dentist checks enamel, gums, restorations, and sensitivity before prescribing it.
The short answer
Home bleaching uses custom trays and a dentist-selected peroxide gel worn for prescribed periods; the mouth should be examined first for decay, gum disease, sensitivity, and restorations. The gel lightens some natural tooth colour but does not recolour fillings, crowns, or veneers.
How does a custom tray hold whitening gel against the teeth?
The tray holds gel against the front surfaces of the teeth while limiting contact with the gums. Peroxide diffuses through enamel and dentin to break down selected stain molecules, so the result depends on the original stain and the condition of natural teeth.
What should be checked before custom bleaching trays are made?
Have the dentist check for cavities, leaking fillings, gum recession, cracks, and existing restorations before making trays. Follow the prescribed wear schedule, use only the supplied gel, wipe away excess from the gums, and pause if strong sensitivity or irritation develops.
When should tray problems or unusual sensitivity be assessed?
Seek care for pain in one tooth, gum burns, persistent sensitivity, a broken tray, or colour change that does not match the other teeth. Swelling, fever, or severe pain requires prompt assessment before further bleaching.
What should you ask about stain response, tray fit, and sensitivity?
Ask which stains are likely to respond, how the trays will fit, and how sensitivity will be managed. Discuss the shade of restorations, the gel concentration, the wear schedule, and when maintenance or a different treatment would be considered.
Frequently asked questions
Can home bleaching damage gums?
Poor tray fit or excess gel can irritate gum tissue, so stop and seek advice if burning or whitening of the gums occurs.
How long should I wear the trays?
Use the schedule supplied for your gel and tray rather than copying another person's routine.
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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.