Removable clear plastic retainers
Removable clear retainers are custom-formed plastic appliances that hold teeth in position after orthodontic movement.
The short answer
A clear retainer is made from a thin thermoplastic sheet shaped over a digital or physical model of the teeth. It covers the crowns and applies gentle contact that helps limit unwanted movement while the surrounding bone and periodontal tissues adapt.

Why must a clear retainer be worn and cleaned carefully?
Wear the appliance according to the orthodontist’s schedule, remove it for cleaning as instructed, and rinse it with cool or lukewarm water. Brush teeth before reinserting it, store it in its case, and do not expose the plastic to hot water that can distort it.
How should you wear and clean your clear retainer?
Wear the appliance according to the orthodontist’s schedule, remove it for cleaning as instructed, and rinse it with cool or lukewarm water. Brush teeth before reinserting it, store it in its case, and do not expose the plastic to hot water that can distort it.
When does a clear retainer need a dental review?
Arrange a review if the retainer is cracked, warped, painful, loose, or no longer seats fully. A tooth that moves, gum swelling, or a lost retainer should be assessed before the appliance is remade or adjusted.
What should you ask about wearing and replacing it?
How many hours should I wear this retainer, and when should it be replaced? Can the current appliance still move my teeth if it no longer fits?
Frequently asked questions
How many hours should I wear this retainer, and when should it be replaced? Can the current appliance still move my teeth if it no longer fits?
Wear the appliance according to the orthodontist’s schedule, remove it for cleaning as instructed, and rinse it with cool or lukewarm water.
What information should I bring to an appointment?
Bring a list of symptoms, medicines, relevant medical conditions, and any appliance or product involved.
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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.
