Customer ratings & reviews

At first I bought night guards from Proteeth but these are much better. A few things to note: 1. Don't remove the putty from the tray after impression has been taken. Keep it in the plastic tray & mail the whole thing back. 2. Mix the putty fast. I mixed too slow the 1st time & had to redo. They included an extra putty set so it wasn't a problem. 3. They offer free adjustments if its too tight. Really impressed with this product, incredibly easy to follow instructions and if you follow them, you're left with a secure fitting, comfortable and perhaps most importantly a better nights' sleep. I know another reviewer was worried that reboiling wouldn't be effective since they might be similar to other mouth guard brands. That is true. You cannot boil the Sentinel Mouthguard. However, if you take your mold correctly you will not need to do anything but wear it. It wasn't the most comfortable process but worked.

I have tried those boil-it-yourself mouth guards and they never make it through the night. They always end up on my nightstand. I gave Sentinel a shot. I was probably their worst nightmare of a customer. I had a ton of questions and low expectations. I got the kit to make a mold quickly, followed the instructions, sent in my pictures of my impression to Sentinel. After approval, I sent the mold to their lab using the shipping package they sent me. Sentinel took about 7 days to make my guard. I received it and immediately LOVED it. The guard is not bulky at all. It is very thin and comfortable to wear. I highly recommend this guard!

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!