Customer ratings & reviews

I love my mouthguard that I ordered last year in August and unfortunately I cracked the back piece where my molar grinds down on the guard. Sentinel sent me a free replacement. I received it so quickly and it fits perfectly. Thank you for taking care of your customers!

Fast relief! Allows damaged areas to heal! This was several hundred dollars cheaper than my dentist and the quality of the product is impressive. The entire process was quick and easy. Customer service is great! I have no complaints. Would buy again!

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!

I know first hand that this is a good deal because my dentist office has this exact same at-home teeth whitening system and it is being sold for $500! I looked online to see if I might get lucky and there it was. This gel is a very good teeth whitening gel and I love that you can reuse it unlike the whitening strips. Excellent product, fast delivery, and free shipping. Can't beat it!

Best thing on the market for my poor tongue! I have tried everything!! This is the only product that actually works. If you have a tongue biting problem like I do, try it. It works!

Higher quality than my dentist!! I waited to review after receiving them even though they looked and fit great. I wanted to see how they hold up overtime. I'm pleased to report after 1 year my dental retainers still look and fit perfect! This is the real deal! Thank you Sentinel!

Great craftsmanship. Great fit. Overall 5 stars

Just want you to know that I received my night guard and the fit is perfect! High quality product with great service! Will be using you again in the future!

My dentist recommended I get a dental guard because of my grinding but their price was ridiculously high, so I tried a few different types from the local drug stores including the most expensive one but I could never sleep with them in. I finally ordered the "thicker" Sentinel Mouthguard. It's a softer plastic that feels much better in my mouth and I am now able to fall asleep without any problems. I have been wearing this nightly for several weeks now and it is working great.

My dental hygienist told me that the reason for my recession in my teeth is because I'm grinding my teeth at night. She also told me that if it continues to happen, I will eventually need expensive dental work. So I looked online and thanks the internet, custom mouth guards can now be bought online just like everything else! After some research, I found this one. I have been using it for several weeks now. I don;t wear it every night but my teeth feel less sensitive and painful when I do. Any suggestions on how to remember to wear it every night? Will update if any issues arise but so far so good.