Customer ratings & reviews

They stand by their warranty! I wore through my night guard after 6 months. Not only did they replace it for free, they made me a thicker one that will last longer and didn't charge me a thing. I just bought this for my sister too! Teeth grinding must run in my family! Great product, great service.

A++++ SERVICE IS REMARKABLE! I HAVE RECOMMENDED YOU GUYS TO SO MANY PEOPLE! I JUST LOVE YOUR PRODUCTS> THANK YOU!!

Relieved my teeth sensitivity!!! I was having the worst "zingers" from grinding my teeth. I would wake up with sharp, intense nerve pain. I knew I needed to wear a mouth guard but couldn't find anything comfortable. I went with the medium thickness and it's perfect. My teeth sensitivity is gone and I get better sleep. Great service!

Couldn't be happier with my purchase. Great product for the value.

Fit is spot on. I was skeptical but they nailed it. I highly recommend!

Perfect fit! Great service!

I had trouble getting a good enough impression but customer service was patient with me. I also needed to wait to do this because of some dental work. So not only did they let me hold onto the impression kit for 6 months while I was getting that completed, I messed up my impression when I was finally ready and they sent me a new kit for free! This company has earned my business for years to come. The guard is a perfect fit and quality is high. I will say be careful when mixing the putty and watch your time. I went over the time (mixed too long) and the putty hardened like a rock the first time. Second attempt was successful. Also, they tell you to send a picture in so they can see if it's a good impression before mailing in. I would recommend doing this. They respond fast and it saves time.

I have been grinding my teeth at night for many years but had put off buying a night guard because of the high price my dentist charged for one. Back in 2015, I read rave reviews about Sentinel and decided to give the 2mm Sentinel Hard Dental Night Guard a try. The guard has worn a bit in some spots, but it is still totally usable and going strong more than 3 years later! I couldn't be happier. Thanks Sentinel!

FAST AND AFFORDABLE!! A+

Couldn't be happier with my purchase. Fast delivery and A+++ service!