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

  • Evelyn H.


    Teeth impression process was easier than I thought and I received my mouthguard very quickly after sending it off.
    If you’re like me and clench your teeth during the day, this is the mouthguard for you!
    I love the fit of it. I love that I can communicate easily. I do take it out when I eat and drink.
    My headaches and jaw pain are gone and I can feel that my teeth are thankful I’m not clenching down constantly! A lifesaver for business professionals.

  • Mary Edwards

    This mouth guard is awesome! Easy to create your own teeth impression. My mouth guard came quick and fits like a glove!

  • Adam Jossan

    Fits better than expected! It’s by far the most comfortable mouth guard I’ve ever worn. It stays in place. I can talk with it in no problem. I will be back! Thank you!

  • Katie W.

    The hard option is where it’s at! I tried the soft type first and found that it was too flexible for my liking. Switched to the hard guard (they allow you to switch types if you’re not satisfied) and this is EVERYTHING! My tension headaches are gone and I love how comfortable it is. I only had to pay the cost to upgrade ($20). Fast, affordable and the fit is fantastic!

  • Nazrana

    This is my second time buying this because my dog got it the first time! I only wear this sometimes during the day and it has helped so much with my stress headaches! It’s easy, worth it and gives the best results.

  • CC

    This is my story, and I am totally sticking to it !!! My new “no bite your tongue and cheek” soft mouthguards are PERFECTION !!! I sent pics of my molds first and was encouraged to redo one mold. I mailed everything in. Return time was quick. The edges are so totally flat and smooth, no rough curled up material to irritate any tongue or mouth area. Also, they do not touch my gum line which is divine, just as I requested when I sent my molds in. They are like gloves for your teeth. I can barely feel them and they fit snug enough not to fall off but they are not too tight. Soooooo glad I found your company that makes these. I have literally spent a small fortune on other “Dentist Professional Guards” that NEVER met my need. I’m ordering back up second set for travel.
    Thank You !
    Thank You !

  • Brian Mark

    I’m impressed with their professionalism and would highly recommend their services to anyone looking for help with a mouth guard for teeth grinding.

  • Gregory S.

    The sentinel team was very responsive to my needs even after I messed up my dental impression. They provided me with great feedback throughout the process and I was able to take a great impression with the extra putty pack provided. If you’re on the fence just go ahead and do it. I highly recommend this company to everyone!

  • Adam Green

    I just got my Sentinel guard in yesterday and as I’m sure many others are, I was skeptical to order online. I’m happy to report the impression process was much easier than I thought it would be and the guard is the most comfortable one I’ve ever had! Looking forward to wearing it at work. Hopefully these daily headaches will stop once and for all!

  • Tricia Scott

    I love my current guard so much, I ordered 4 more during your black Friday sale! The difference between your price and the dental office is exceptional!

  • 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!

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.