Ultrasonic Cleaner + UV Light Sterilizer · For guard maintenance
Clean your guard without chemicals.
Ultrasonic waves and UV light sterilisation in one device — removes bacteria and prevents stains on night guards, retainers, whitening trays, and all other oral appliances.
- Works with all Sentinel products — night guards, day guards, retainers, whitening trays, tongue and cheek guards
- No chemicals required — ultrasonic waves and UV light do the work
- Kills odour-causing bacteria and prevents stain buildup
- One device for every oral appliance in your household
vs. $650 dentist
Not sure this is right? Take the 2-minute quiz
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.
vs. $650 dentist
Not sure this is right? Take the 2-minute quiz
Ultrasonic Cleaner + UV Light Sterilizer
$57.80What'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
Charissa Becker Martinez
Verified Buyer
This little gadget first cleans the gunk from my nightguard (ultrasonic cleaner)…it then sterilizes the inner surface afterwards (UV light). I 100% feel this works because there is always a little gunk at the bottom of the container after using the ultrasonic cleaner, before I dump the water. I then dry the inner surfaces with the cloth provided, and expose the inner surface of my night guard to the UV light, letting it sterilize everything. I don’t have to scrub my nighguard with a toothbrush, ever! I used to work in a laboratory and the UV light was used to sterilize all surfaces. This is why I feel this great little gadget is totally worth it!!! Thank you!
Igor Ganapolsky
Verified Buyer
Works exactly as described in even better and it's much cheaper than other sanitizers of mouthguards
Vanessa
Verified Buyer
Easy to use and definitely helps clean my night guard after use. Very happy with the product.
Kahuna Kalei Heartland
Verified Buyer
A great product that I would recommend for anyone looking to safely and effectively clean mouthguards. The customer service is great as well.
Lisa Bouray
Verified Buyer
I use it on a daily basis and it keeps my mouth guard very clean.
Liz Garver
Verified Buyer
Such an easy way to clean my mouthguard every morning. I get it set up the night before, throw the mouthguard in before I get in the shower and when I get out, it is cleaned and sanitized!
Barb Perslin
Verified Buyer
It takes only a few minutes to clean my mouth guard now without all the messiness! Glad I bought this UV sterilizer. Works much better than hand cleaning with a toothbrush!
Ihsan Orem
Verified Buyer
Quick and painless. Keeps my guards clean
DANIEL WAL
Verified Buyer
After just a couple uses, my mouthguard looks brand new and fits better. I tried to brush it, even with hydrogen peroxide, but it never came clean before. Now, it is nice and clean - I use a combination of filtered water and hydrogen peroxide in the cleaner and change it once a week. Super convenient.
Matthiew Haines
Verified Buyer
I tried several methods of cleaning my night guard but none of them seemed to work over time. This solved my problem in only 3 minutes.