Customer ratings & reviews

Worth it! Thank you Sentinel!

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.

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!

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.

Oh my gosh I saved so much money going this route! My dentist was going to charge me $500 A PIECE for new dental retainers after my dog chewed them. My teeth aligners are perfect. They fit so good. HIGHLY RECOMMEND!

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

This is a review about their customer service. This product just didn't work for me. I have a very bad gag reflex and was unable to use the trays to take my teeth impressions. I opened and used the impression kit they sent out and called them to tell them that I couldn't complete the process. They were so kind and issued my full refund immediately. Didn't even have to send back the materials! Even though I didn't end up getting a night guard, I was so pleased with the way they handled my issue. I will be back if I can ever get past this horrible gag reflex! Thank you again Sentinel. -Mary