No-Show Day Mouth Guard


Defending Your Teeth From The Daily Grind

Do you find yourself gritting or clenching your teeth during the day? Daily clenching and grinding can cause constant headaches, jaw pain, sensitivity, wear, cracks, chips, and breaks. The damage accumulates over time, resulting in costly dental work.

Ask any dentist- there is simply nothing better to eat, laugh, talk and chew with than natural teeth. We understand the toll that clenching and grinding takes on your dental health.

With our No-Show Day Mouth Guard, your teeth are comfortably protected and your tooth structure stays preserved.

Protecting your teeth and your pocketbook starts here!

Don’t let teeth grinding and clenching destroy your smile.

Our No-Show Day Mouth Guard is specifically designed to protect your teeth from the damaging effects of teeth grinding and clenching during the day. Made from a hard, durable material, our mouth guard offers superior fit, protection and comfort, so you can go about your day communicating with confidence.

Say no to the daily grind and hello to a healthier you.

sentinel mouthguards smile

Smile and Communicate With Perfect Ease

  • Prevents teeth from grinding and clenching
  • Prevents jaw pain, headaches, teeth pain and sensitivity
  • Protects teeth from chipping and cracking
  • Prevents long term dental issues and future dental repairs caused by clenching and grinding
  • Promotes better sleep and better oral health
  • Satisfaction guarantee + 1 year warranty

Experience the difference in just three simple steps:

Here's how it works 3 easy steps

Since 2012, we have helped thousands of people just like you overcome their battle with teeth grinding and clenching. We’ve developed a simple and easy-to-use mold kit that allows you to create a mold of your teeth from the comfort of your own home. Once we receive your mold, we’ll create a mouth guard that fits perfectly to your unique dental profile, ensuring maximum protection and comfort.

Please note: if you have 2 or more molars missing, this product may not be suitable as the missing molars can jeopardize the fit.

Expert Fit by Professional Lab Technicians

Do you need your custom day mouth guard as soon as possible? You can speed up the process by selecting the expedited shipping option during checkout. This option includes all-inclusive USPS Priority Shipping and a quick turnaround time of just two business days, so you can receive your mouth guard sooner and start enjoying the benefits of superior protection and comfort.

Product Description

Invisible Protection from Daily Grinding and Clenching

Rise and Shine with a Grin or Your Money Back

Nestled in the heart of sunny St. Petersburg, Florida, we’re masters at creating top-notch night guards and mouth guards. Our entire range of products is proudly crafted on American soil by our longstanding team of dental professionals. And here’s our rock-solid pledge to you:

  • 100% satisfaction. We stand behind our products and will provide you with nothing less than our personal best from our long-standing team.
  • 30 Day Satisfaction Guarantee. If you don’t like your new custom guard whether it’s a fit issue or comfort, let us know within 30 days and we’ll refund you.
  • 1 Year Warranty. If you grind through your night guard within 1 year of purchase, we’ll replace it for you free of charge.

What you get:

  • Dental impression kit. We send you plastic trays, dental putty, and a a prepaid envelope to mail back to us.
    You need to have a timer, clean hands, & good solid teeth. No braces. Seriously, putty & braces do not mix.
  • (1) Custom No Show Day Mouth Guard
  • (1) Ventilated retainer case

Should your first attempt at a dental impression miss the mark, there’s no need to stress. We’re here to help by providing a free redo kit, no questions asked.

We’re proud to announce our recognition as Forbes’ Best Night Guard choice for 2023

no-show day mouth guard voted best mouth guard in 2023 Forbes Health

Not sure which guard is right for you? Get expert guidance with our 60 second quiz!

find your night guard match now graphic

example of damage from teeth grinding and jaw clenching

Need additional help? Visit our help center


Additional Information

Guard For

Upper teeth (most preferred), Lower teeth

Product Reviews

  • 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!

  • Jason Cumbers

    The communication was clear and helpful throughout the process. I would highly recommend this night guard company for anyone looking for a comfortable, affordable custom guard.

  • 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

  • Virginia Lutz

    My dentist told me I needed to be wearing a night guard during the day for my teeth clenching but could only offer me one of the bulky ones he sold at his office. No thank you! I did a search and selected this company on the basis of all the positive reviews. No regrets! I have only positive things to say about my experience. I received the kit and read the instructions carefully.I sent in pictures of two molds I took and the company representative helped me decide which one to mail in. The guard came and fits so perfectly. I wear it all the time. This is my first day guard and it has worked successfully. I highly recommend this guard!

Free Shipping

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

30 day guarantee

Try it out! If you’re not satisfied, you can always return the Mouthguard within 30 days for a full refund.

Save 20%

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