Retainer Help Centre

Find answers to common questions in our FAQs, learn how to care for and maintain your retainers with our aftercare guides, and easily reorder replacements when you need them.
Clear dental retainer with white case on a light gray background

Fit & Comfort

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Person holding a clear dental aligner with their fingers.

Wearing & Removing

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Clear aligner held by a hand with a tooth brush and a white background

How to Clean & Care

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Eating & Drinking

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When to Replace

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Popular Questions

Essix retainers typically last 6 to 18 months, depending on how they’re used and cared for. The 1 mm option may wear out sooner, especially if worn during the day or while clenching. The 1.5 mm offers a bit more durability.

Heat, harsh cleaning products, biting pressure, and poor storage can all wear a retainer down faster. Clean it gently and always store it in its case.

If your appliance doesn’t fit as expected, simply let us know within 14 days of delivery. We’ll assess your case and, if needed, remake your appliance free of charge to ensure a perfect fit. This guarantee applies as long as your impressions or scan data meet our required quality standards.

Replace your retainer if it becomes loose, warped, cracked or discoloured. If it doesn’t fit properly or doesn’t stay in place, it’s no longer doing its job.

1 mm is lower profile and more discreet. 1.5 mm offers more durability and is better for stronger bite pressure. Both are clear and comfortable. Choose what fits your routine best.

No. Retainers hold your teeth in place after straightening. They’re not designed to move teeth. If your teeth have shifted, a new treatment may be needed before getting retainers.

They’re made from high-quality, medical-grade plastic. It’s BPA-free, clear, and designed to be strong, safe and comfortable for everyday wear.

Yes. If you need an invoice for dental, health, or other insurance claims, we can provide a detailed invoice showing your order, product type, and payment confirmation. Simply email our support team after placing your order, and we’ll issue the invoice in the format required for insurance submission.

You’ll receive an email after purchase: simply reply with your scan files, or use your free prepaid label to post your 3D models.

Our retainers cover your teeth up to and including your second back teeth. They do not extend to wisdom teeth. This provides optimal retention and comfort while maintaining the alignment of your visible smile.

You’ll receive your retainers, a storage case, an aftercare pack with chewies and a removal tool, and peace of mind with our 30-day perfect-fit guarantee. If needed, a self-impression kit will also be provided.

Your kit includes materials for three attempts, so you’ve got plenty of chances to get it right. If you need more, we’ll happily send extra.

Your comfort matters. If your retainers aren’t the right fit, we’ll provide one free remake to make sure they’re perfect for you.