No-Show Day Guard for Teeth Grinding and Clenching


Defend Your Teeth From The Daily Grind

The No-Show Day Guard protects the teeth from grinding and clenching while remaining virtually undetectable in the mouth.
This back-cut, soft, flexible custom daytime mouth guard hugs the rear teeth only.

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Smile and Communicate With Perfect Ease

  • Relieves effects of daytime clenching and grinding such as headaches, teeth pain, jaw pain, neck tension
  • Prevents headaches, teeth breakage and cracking
  • Protects the jaw and relieves sore joints
  • Invisible daytime guard offer maximum protection
  • All custom night guards are made in the USA
  • Safest dental materials BPA, MMA, Gluten, Phthalate, Latex, Silicone Free

Product Description

  • Sentinel Mouthguards® No-Show Day Guard is designed to be virtually undetectable in the mouth.
  • Instant relief from facial/jaw pain, headaches, & tooth sensitivity. Wear your daytime mouth guard without anyone noticing!
  • BPA, Phthalate, Silicone, Gluten, MMA, Latex Free. Learn more about material safety here
  • Easy to use do-it-yourself impression kit ships within 24 hours after purchase.
  • Protect against headaches, teeth breakage, cracking, damage. Combats pain or tenderness of TMJ
  • Perfect for everyday use in the office, gym, or anywhere! Use anytime you feel stressed or when you’re more prone to teeth clenching.
  • Protects veneers, crowns, dental work. Prevents disrupted sleep patterns.
  • Superior Fit- Proper Jaw Support- Maximum Breathability, Comfort, & Protection. The soft No-Show Day Guard was designed for comfort, flexibility and discreetness.



Product Reviews

  • Dana O’Malley

    The impression is easy to take and the quality exceeds its price. I like that I can get a replacement for free if I grind through this one within 6 months AND that I don’t have to take my impression again (they hold on to it). The way my stress level is, I might be grinding through this quicker than I think!

  • Teri OConnor

    This is the best mouth guard I’ve found for daytime use. I clench my teeth horribly during the day. I use this while I’m at the gym and in the office. This is a great article they sent me about how to take care of it and keep it from turning yellow. I’ve had many many night guards before and if you don’t take care of them properly they will turn a nasty yellow! Thank you Sentinel team. You have a customer for life!

  • Jon Rogers

    LOVE my new guard and the commitment this company has to using safe ingredients. I had an allergic reaction after using one I bought from Walgreens, a boil & bite. I appreciate the transparency of the materials used. This is high quality and the fit is perfect!

  • Pamela Patterson

    An absolute tooth saver! I have the hard night guard for nighttime and just received this day guard. It’s a perfect fit. I love wearing it during the day and no one can tell I have it in! -Pam

  • Ron

    Just placed an order for a second one to have as a backup. The fit is perfect! Thank you~

  • Chris Oso

    I didn’t realize how badly I was clenching my jaw during the day until I started having headaches! I work from home but on a computer for long periods of time. This works so well. The ordering process was easy. My headaches are GONE and I feel so much better knowing that even if I can’t stop clenching my jaw during the day, my teeth are protected! 5 stars!!

  • Betty Forester

    I found this to be perfect for so many reasons. 1st I found these to be so helpful when I realized I was suffering massive headaches during the day from clenching my teeth. I found the day guard and then later saw that they had other varieties as well. The 3mm hard night guard is perfect for my nighttime grinding and I wear the thinner day guard at work. Being able to have them both and save a lot of money is wonderful. I got 20% off my thicker nighttime guard because the lab already had my impression on file. All you have to do is ask for the coupon code! I highly recommend these!

  • Keith Sell

    These day guards are a good value. The other night guards are more to wear thru the night. The teeth impression shaped easily. I was happy to see they sent some extra putty in case I needed to redo it but I didn’t have to. Got a perfect fit. Day guard fits well and I’m a happy customer!

  • Fabian Bibeau


    This is my honest review. I have crooked teeth and was very concerned about how this would fit over my teeth. I took a bad impression the first time around. The team at Sentinel sent me a new kit. They did not charge me for the 2nd kit. I took my time reading the instructions and got a good impression. I usually work about 7 to 8 hours at my computer per day. I wear this guard during the day and it works well. My jaw feels better. I feel good knowing I’m not doing damage to my teeth now. I bought 2 more of them during their xmas deal as backups. Go for it. I definitely recommend them.

  • Nicola J.

    Love it. Last time I went through a different seller and the quality was not half what yours is.I am very happy.thankyou

  • Native hummingbird

    Worth the investment!!
    I was going back and forth with whether to order a whole, standard night guard or the no-show guard. I chose to get a no-show day guard and I’m so glad I did! My order came in much less time than expected, and the quality is outstanding. The cost is about 1/3 of what my dentist wanted to charge. I would definitely order again, and would recommend them highly.

  • Kim Glover

    Ever since learning that most other companies outsource the making of mouth guards to other countries, I’ve decided to stick with this US based company. They’re transparent about the safety of the plastics used and I feel confident in the quality of my mouth guard. -Kim

Free Shipping

We ship your kit with everything you need from the molding trays and putty to the prepaid return packaging.

90 day guarantee

Try it out! If you’re not satisfied, you can always return the Mouthguard within 90 days for a full refund.

Save 20%

By entering coupon code "big spender", you save 20% on orders over $200.