Night Guards · Hand-finished in the USAFour guards.
One matched to how you grind.
Select by severity — or take the quiz if you're not sure.
For moderate grinders
The Hybrid Guard
Soft inside against your teeth, firm outside against grinding force. Hand-finished for moderate grinders who want the comfort to wear it all night and the durability to make it count.
Not sure how severe your grinding is? The quiz will tell you.
How the four guards compare
Same dental lab. Same hand-finishing process. Different materials for different grinding severity.
| The Comfort Guard | Most popularThe Hybrid Guard | The Hard Guard | The Durability Guard | |
|---|---|---|---|---|
| Severity | Light | Moderate | Heavy | Severe |
| Material | Soft EVA | Soft EVA inner layer, hard copolyester outer layer | Hard copolyester | High-strength copolyester |
| Thickness | 2mm | 2mm | 2mm | 3mm |
| Best for | Sensitivity, light clenching | Most night grinders | Previous guard wearers, heavy grinders | Dentist-confirmed severe bruxism |
| Price | $140.25 | $161.50 | $182.75 | $199.75 |
| Choose this guard | Choose this guard | Choose this guard | Choose this guard |
From impression
to a guard that actually fits
No dentist appointments. No waiting room. Just a guard hand-finished to your exact bite and shipped free to your door.
01Place 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.
02We finish your guard by hand
Your guard goes straight to manufacturing — no impression kit, no waiting. Our technicians hand-trim, shape, and polish it to the exact contour of your bite.
03Protection arrives
Your guard ships free with care instructions and a guard case to keep it safe between nights.
What'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.
From people
who grind.
Real reviews from real night grinders.
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 — six months on the Comfort Guard. We stand behind what we make.
Real Humans, Real Help
Talk to our dental technicians directly. No scripts, no runaround just expertise.
Stop waking up in pain.
Your guard is hand-finished to your exact bite. Ships free. Backed by the 100-Night Outcome Guarantee and three attempts to get the fit right. If it's not right, we make it right.