Customer ratings & reviews

My daughter needed a new retainer for her upper, hers didn't fit right, rubbed her gums, she wouldn't wear it and didn't want to go back because she wasn't heard when she expressed that something was off. Anyway, we had a new upper made by Sentinel and it fits perfect. So she's back to wearing them nightly again, and I don't have to worry about the investment we made in her smile being lost. So thank you again!

Bought this for my boyfriend. My boyfriend loves that it is fitted, it is sturdy enough to hold its own shape but not stiff and uncomfortable.

Worth it! Thank you Sentinel!

These worked great! Both for heavy duty grinding and cheek biting (yes I do both). They fit my top and bottom teeth though some nights I only use one at a time. I'm so grateful because my teeth are uneven (I need braces), but they still fit over my teeth perfectly! They don't come out when I'm sleeping! I grind/ clench my teeth in my sleep and have unsuccessfully used mouth guards in the past. They'd pop out my mouth while sleeping and I'd wake up with it next to me. Also I chewed through a few within a month. So this is a lifesaver!

Great value, low price. Works great, and looks nice. This is my second night guard I've bought from this company (first on on Amazon). These are made very well, and last quite a long time. First one I bought in 2017. I have been avoiding going to the dentist since COVID19 hit so it is nice that this option exists for us.

You guys rock! We appreciate you so much. My husband and I are long time customers. We tell everyone about you. Keep up the good work! A+!

I bought this as an affordable option vs. going to get a customized piece from my dentist for triple the price. When I opened them I was immediately impressed with the quality. They're formed so well, comfortable, and they stay in place all night. Pleased!!

Just bought two more for my little cousins for Christmas. I've had mine for about 5 months now. I used to go through the $5 ones every week!

I received my mouth guard and am very happy with the product so far. It was a bit nerve racking finding an internet company to fulfill this need. I'm glad I found Sentinel. I have been telling everyone I know about it and I've found most of my friends and family have mouth guards. I will continue to talk about it and hope to send some folks your way.

Better than my ortho!! Impression process was easy. I love them! Customer service was very informative and friendly <3