OUR BIGGEST EOFY SALE IS ON NOW!
Save up to 50% off storewide!
EOFY SALE

Smileflex® Night Retainer Max

Jaw
Thickness
Colour
Crystal Clear
Blue Moon
EOFY BONUS: Free Premium Sterilising Foam (worth $39) with Every Retainer Order!

Keep your retainers fresh and clean with our Premium Sterilising Foam. Your free gift will be added to your cart automatically.

In light of the Smile Direct Club sudden closure, all Smileflex retainer orders will be created within 3 business days over the Christmas period to ensure your teeth retain their current positions.

Start an easy cleaning care routine
Afterpay logo

How Afterpay works

Fill Your Cart

Fill your cart
Add your favourite Smileflex products to your cart and head to checkout.

Choose Afterpay At Checkout

Choose Afterpay at Checkout
Select Afterpay as your payment method in the third step of checkout.

Enjoy Instant Approval

Enjoy Instant Approval
Create or log into your Afterpay account, with instant approval in seconds.

Split Into Instalments

Split into Instalments
Your purchase will be split into 4 instalments, to be paid every 2 weeks.

You don’t have to wait until payday for dental care!

Unlike a traditional lay-buy, Afterpay allows you to receive your products straight away, meaning you can smile now and pay later!

All you need is:

  • To have a debit or credit card ready
  • Be over 18 years of age
  • Be a resident of Australia

To use this service:

  • Select Afterpay as your payment option in checkout
  • Follow the prompts to either create or log into your Afterpay account
Paypal logo

How Paypal - Pay in 4 works

Fill Your Cart

Fill your cart
Add your favourite Smileflex products to your cart and head to checkout.

Choose Paypal - Pay in 4 At Checkout

Choose Paypal at Checkout
Select Paypal as your payment method in the third step of checkout.

Enjoy Instant Approval

Enjoy Instant Approval
Create or log into your Paypal account, with instant approval in seconds.

Split Into Instalments

Split into Instalments
Your purchase will be split into 4 instalments, to be paid every 2 weeks.

You don’t have to wait until payday for dental care!

Unlike a traditional lay-buy, Paypal - Pay in 4 allows you to receive your products straight away, meaning you can smile now and pay later!

All you need is:

  • To have a debit or credit card ready
  • Be over 18 years of age
  • Be a resident of Australia

To use this service:

  • Select Paypal as your payment option in checkout
  • Follow the prompts to either create or log into your Paypal account
Klarna logo

How Klarna works

Fill Your Cart

Fill your cart
Add your favourite Smileflex products to your cart and head to checkout.

Choose Klarna At Checkout

Choose Klarna at Checkout
Select Klarna as your payment method in the third step of checkout.

Enjoy Instant Approval

Enjoy Instant Approval
Create or log into your Klarna account, with instant approval in seconds.

Split Into Instalments

Split into Instalments
Your purchase will be split into 4 instalments, to be paid every 2 weeks.

You don’t have to wait until payday for dental care!

Unlike a traditional lay-buy, Klarna allows you to receive your products straight away, meaning you can smile now and pay later!

All you need is:

  • To have a debit or credit card ready
  • Be over 18 years of age
  • Be a resident of Australia

To use this service:

  • Select Klarna as your payment option in checkout
  • Follow the prompts to either create or log into your Klarna account

Shipping information

FREE

Australia Post Standard(4–6 business days)For orders $80+, which includes 3-way shipping required for custom orders

$7.99

Australia Post Standard(4–6 business days)For orders below $80

$10.99

Australia Post Express(1–2 business days)For all orders, which includes 3-way shipping required for custom orders

Please note: The shipping time frame above may differ in length between each state. Extreme weather conditions may cause Australia Post delays out of our control. Learn more.

Orders placed by 2pm AEST will be dispatched the same business day from our warehouse in Melbourne. Estimated delivery time frames are based on Metro areas.

Smileflex Pro Finish™

We design your order with the Smileflex Pro Finish™, our guideline based on the highest industry standards for custom-fitted dental appliances.
This guarantees consistency by each one of our Smileflex technicians and a quality finish for every product.
Front view

1mm precise cut over your gum tissue.
For aesthetics and easy removal of your retainer.


Top view

1mm precise cut over your gum tissue.
To prevent any irritation and inflammation at your gum line.

Coverage extended to all teeth. (Except for any molars that are yet to fully emerge from your gum tissue.)

Not sure which Smileflex retainer
is right for you?

Compare our range

The Original and Most Reliable.
Smileflex® Night Retainer Max™ is the trusted choice for maintaining the results of your orthodontic treatment. Specifically designed for night-time wear, it offers greater strength and durability than standard retainers — ideal for securely holding the position of your teeth while you sleep.

Available in 1mm or 1.25mm thickness, each retainer is custom-made from your dental impressions to ensure a comfortable, reliable fit every night. Choose from Crystal Clear or Blue Moon — an exclusive Smileflex colour that makes it easy to tell apart from your daytime set.

Crafted with precision and manufactured to meet Australia’s strict medical device standards, Smileflex remains the trusted name in safety, comfort, and quality.

Registered in the Australian Register of Therapeutic Goods. ID: 374477
Learn more about medical device standards in Australia: tga.gov.au/medical-devices

  • Custom-fitted to your mouth
  • High-strength design
  • Available in 1mm or 1.25mm thickness
  • Smileflex Pro Finish™What's this?
  • Keeps your teeth straight after orthodontic treatment
  • Exceptionally durable and retains shape

High-Strength Design

Incredibly thin. Incredibly strong. Created from a high-strength copolyester, Smileflex® Night Retainer Max™ is purpose-built for night-time wear. Available in 1mm or 1.25mm thickness, it offers added durability to help maintain the position of your teeth with confidence and peace of mind.
100%
perfect fit guarantee on your custom-fitted retainers 64%
more affordable than retainers from a dentist1
1Based on the Smileflex® Night Retainer Max™ - Upper + Lower valued at $569 compared with upper and lower Essix retainers from a dentist valued at $1600.
NEW + IMPROVED!

Home Impression Kit

It's all about custom! Introducing the new and improved Smileflex impression kit, developed by dental professionals. Taking your impressions in the comfort of your home has never been easier!

And of course, everything is included to return your impressions free of charge. Our Smileflex dental technicians will use your impressions to make your perfect custom-fitted products!

Impression kit registered in the Australian Register of Therapeutic Goods. ID: 372392

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Product details

Perfect Fit Guarantee

We don't mean to flex... But we pride ourselves on creating high quality custom dental care. That's why every custom product comes with our perfect fit guarantee. If your custom products don't fit, contact us within 7 days of delivery and we'll remake them for free!

Frequently Asked Questions

You asked, we answered! We’ve put together some of the most commonly asked questions about our custom night retainers. If you can't find the answers you're looking for below, head over to the Smileflex Help Centre for even more information.

Product reviews

All of our store's product reviews can be found at our dedicated Results & Reviews page.


Join the Flex Club

Smileflex® Night Retainer Max / Upper / 1mm / Crystal Clear