Clear Dental Retainers - Perfect Replacement Aligners · For post-orthodontic patients
Keep the smile you worked for.
Custom-fitted Essix Plus clear retainers — stronger and more durable than standard retainer material, at a fraction of what your orthodontist or dental office charges.
Right for you if
- You've finished braces or aligners and need a retainer to maintain your results
- You need a replacement retainer without paying dental office prices
- You grind lightly — Essix Plus material provides protection against light grinding as well as retention
vs. $650 dentist
Not sure this is right? Take the 2-minute quiz
What makes this guard right
Essix Plus — stronger than standard retainer material
Premium dental retainer material that's more durable than standard Essix. Maintains your orthodontic results while providing more resistance to daily wear than cheaper alternatives.
Clear and virtually invisible
Custom-fitted to your exact teeth so it seats flush and stays there. Clear material means it's not visible when you're wearing it — day or night.
From your impression, not a dental office
Same custom fit as a retainer made at your orthodontist or dental office. At-home impression kit, same precision result, fraction of the cost.
What happens after you order
Place your order & email your scan
Choose your guard and check out. Then email the STL or PLY file from your dentist to info@sentinelmouthguards.com — we’ll confirm receipt and start manufacturing.
We finish your guard by hand
Your guard goes straight to manufacturing — no impression kit, no waiting. Our technicians hand-trim and polish it to the exact contour of your bite.
Protection arrives
Ships free with care instructions and a guard case to keep it safe between nights.
Right for you if
- You've finished braces or aligners and need a retainer to maintain your results
- You need a replacement retainer without paying dental office prices
- You grind lightly — Essix Plus material provides protection against light grinding as well as retention
vs. $650 dentist
Not sure this is right? Take the 2-minute quiz
Clear Dental Retainers - Perfect Replacement Aligners
$140.25What's not in your guard
We use only dental-grade, FDA-compliant materials. Here's what you'll never find in a Sentinel guard.
Same material standards as your dentist
Sentinel's lab is FDA registered. Our finishing process meets the same standards your dentist's lab is held to — because we are one.
No leaching substances
You wear your guard 6–8 hours a night. Leaching is real — it happens when plasticisers migrate out of the material into your body. Every Sentinel material is selected specifically because it does not leach.
Not just BPA free — BPS free too
Many 'BPA free' products substitute BPA with BPS, which researchers believe may be equally harmful. Sentinel is free of both — and every other bisphenol compound.
Every guard is hand-finished in the USA by our dental technicians. No outsourcing. No exceptions.
The Sentinel Promise
The finishing process is what makes us confident enough to promise this. A guard that's hand-trimmed to your exact bite fits. And a guard that fits doesn't need a guarantee — but we offer one anyway.
100-Night Outcome Guarantee
Sleep on it for 100 nights. If you're not waking up better, return it. A $23 fee covers shipping and materials — everything else is refunded.
Three Attempts to Get It Right
Adjustments, remakes, and one complimentary redo impression kit in any combination. If the fit still isn't right after three attempts, we'll issue a refund minus a $23 fee to cover shipping and impression kit costs. Covered within your 100-night guarantee window.
1-Year Craftsmanship Warranty
Every guard is covered for one year against defects in materials and workmanship. We stand behind what we make.
Real Humans, Real Help
Talk to our dental technicians directly. No scripts, no runaround just expertise.
Customer Reviews
Devra
Verified Buyer
I have the one for top teeth & it fits correctly. Easy to wear & clean.
cathleen glidden
Verified Buyer
I am very pleased with the lower only retainer I purchased.
Kathryn Wangsadirdja
Verified Buyer
Clear Dental Retainers - Perfect Replacement Aligners
JS
Verified Buyer
Great product and an even better price. Awesome customer service as well.
Kayonna Jones
Verified Buyer
I had been wearing my beat up retainers for a while I just couldn’t find anyone to replace them for a price that I could afford. I found you guys & they fit perfectly nice & snug, way more durable than the ones I had & they’re just perfect! Let’s just say you guys have a customer for life & I will be purchasing more just to have on hand. Thank you for saving my smile!!!
John-Michael Nida
Verified Buyer
Love these guards! I rest (literally, while I’m sleeping) with the peace of mind my teeth are staying straight after braces and safe from the annoying clenching I do at night. Love it!
Dave Pan
Verified Buyer
The aligners are great I will reorder them when they wear out
Iisha Belcher
Verified Buyer
Clear Dental Retainers - Perfect Replacement Aligners
Urania Fung
Verified Buyer
Arrived timely! Fits great!
Michael Roe
Verified Buyer
Using them as no cheek biting guards. As they don’t get food stains