Customer ratings & reviews

Very good, dependable service! Reliable, fast and helpful with a great product! Would recommend!

Great night guard! I used to buy the bulky boil & bite guards because I didn't want to pay the price but I always ground through them and ended up spending more money than if I would have just got a custom one! Fantastic fit and high quality. Couldn't be happier with my purchase!

Finally an affordable option! This is now my favorite company! Process was easy and mouth guard fits like a glove. I highly recommend.

Worth it!! Had my dentist make me a guard and it was so bulky and uncomfortable I never wore it. Tried to get a refund but umm no. Found this company online and for $130 this was far less expensive than my dentist. Glad I did it! Fast, friendly service and my mouth guard fits like a dream. Thank you Sentinel team!

This guard is great! Fit is spot on. I highly recommend *****

A++++ fast shipping. Excellent correspondence & solid product. Thumbs up!!

Very happy! This is a great service for people like me who are on a fixed income and can't afford the dental office price. I'm elderly and I was nervous about taking my teeth impression but I did it and it was easier than I thought. I appreciate that they keep my impression on file for future orders. Good company with great staff!

I’m on my third nightguard right now and I could never go back! The nightguard fits perfectly and it is so comfortable. I can completely tell the difference when I don’t wear it. I absolutely love my nightguard! The service of Sentinel is great too! I had a crack in my guard, and they sent me one for free! I would highly recommend this! The only downside is that mine has calcium build up and has yellowed. I’d like to know how to avoid that.

The most comfortable night guard for grinding! These are the best. I no longer wake up with headaches and a sore jaw. The turn around time and customer service was stellar. Don't hesitate to buy! Save your teeth!

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.