No-Show Day Mouth Guard · For daytime clenchers
For the clencher who needs to get through the day.
Custom-fitted hard copolyester with a unique no-show cut — the front of the first six teeth is open so the guard is virtually invisible and won't affect your speech.
Right for you if
- You clench or grind your back teeth during the day
- You want protection that's invisible at work or in meetings
- Your clenching is light to moderate in intensity
vs. $650 dentist
Not sure this is right? Take the 2-minute quiz
What makes this guard right
Virtually invisible from the front
The labial surface of the first six teeth is cut away — nothing visible when you talk, smile, or present. The guard sits behind your front teeth, not over them.
Designed for clear speech
The no-show cut means no bulk against your front teeth. Most customers find it doesn't affect their speech at all — important if you're wearing it at work.
2mm hard copolyester
The same rigid material used in our Hard Night Guard. Provides back-tooth cushion and separation for light to moderate daytime clenching.
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 clench or grind your back teeth during the day
- You want protection that's invisible at work or in meetings
- Your clenching is light to moderate in intensity
vs. $650 dentist
Not sure this is right? Take the 2-minute quiz
No-Show Day Mouth Guard
$153.00What'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
null null
Verified Buyer
This is perfect for say wear.. I may order one for night time..
Daniel Volpano
Verified Buyer
I am impressed at the customer service of this company. I lost my mouth guard and they made a new one, and I had it in less than a week. The guard fits perfectly. I have not had a single issue regarding my no show mouth guard.
Patti Lopez
Verified Buyer
These mouth guards have proven to be a wonderful solution for bruxism. Customer service is above & beyond. Wish I had known about Sentinel Mouthguards sooner!
Camile Hurley
Verified Buyer
Great job..fits perfectly
Alfred DuPuis
Verified Buyer
So glad I found this product! Easy to order and works great. Comfortable to wear and prevents teeth clenching and grinding. Highly recommend and will definitely reorder when I need to.
James C.
Verified Buyer
I’m extremely happy with my Sentinel mouthpiece. Making the imprint was easy, shipping was timely and the mouthpiece fit great!
G Barnum
Verified Buyer
The guard is exactly as described. Fit is good. Very satisfied.
Kathleen Rogers
Verified Buyer
This product was far cheaper than if i bought it from the dentist and was well mads. The no show aspect is a bonus. Fit was tight but felt better after a few days. Would recommend to a friend
Kristy Kennamore
Verified Buyer
the people at Sentinel Mouthguards are wonderful!! The day guard fits perfectly!!
Scott Roggensack
Verified Buyer
Sentinel mouthguards are great, the mouthguard itself is exactly what I needed, and wanted. It can't be seen, and when I am wearing it there is no slur of speech, or anything like that. The customer service is some of the best I have experienced. They are professional, but courteous. I messed up my first molding kit, they sent me another without question. My mouthguard broke and sentinel mouthguards replaced it with a stronger version suited to my needs. I highly suggest this company and this product..