Customer ratings & reviews

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!

Amazing! Highly recommend. I'm a hygienist and have been recommending these guards to my patients for years. I wear one myself and I love passing on the quality and savings to my patients. Will happily continue recommending them for years to come!

I saved so much money!! I was worried about taking my own dental impression but this company goes the extra mile to make sure it's an easy process. I actually enjoyed taking my teeth mold! The fit of my night guard is fantastic. Will definitely order again when the time comes. Very satisfied customer!

Found this company online. The staff was friendly and helpful. They answered my questions in a prompt manner. The finished product is of highest quality. I am happy with my purchase and will order again in future.

This has been a problem since I was a kid. I bite the inside of my cheeks until they bleed. I do it in my sleep so I am unaware of it. I've tried a lot of methods to stop the cheek biting. I think I do it more when I'm stressed. I bought these dental guards because I can't seem to stop on my own. I can sleep with them in comfortably. I can't tell you how nice it is to finally have my cheeks healed up. I would highly recommend this product for anyone that has the same issues as me. 10 stars!!!! -Bill

These Sentinel Mouthguards are without a doubt the best mouthguard I have worn. I've been a customer since 2013. They fit perfect and are unbelievably comfortable. The design is great and the color really pops. The quality of the material is very, very high and the quality of the overall product is extremely high. I will never purchase another brand of mouthguard. They are perfect to wear during Muay Thai, Boxing, MMA, Jiu Jitsu, Wrestling or any other kind of combat sport or just to work out in. A+++++

This is a great dental guard. Nice and comfortable. Big thanks! -Jim