Customer ratings & reviews

Ever since learning that most other companies outsource the making of mouth guards to other countries, I've decided to stick with this US based company. They're transparent about the safety of the plastics used and I feel confident in the quality of my mouth guard. -Kim

Great Night Guard, Read the Instructions! This is probably one of the best night guards for me that I've used thus far. I purchased this to help with my teeth grinding, but have found it extremely helpful for snoring too. I'm satisfied with the product and will order another when the time comes. Thank you!

Surprisingly easy and fast! I lost my night guard and was in a panic. I didn't want to wait but dental office price is out of my budget. I paid extra for the expedited shipping (still way cheaper than the dentist). Got my kit within 2 days. Got my guard within a week of sending it off. Fits like a glove! So thankful for this company!

I wasn't aware of the difference between my boil & bite and a custom fit one. I was skeptical but the difference is unbelievable. Great mouth guards! *****

Wanted these EXACT trays and whitening when I saw them advertised at my dentist for $500! I looked online and got the same product for $300 LESS! The power of the internet! Yes, it takes a bit of time to make the impressions and get the final delivery but worth the savings! My teeth have gone from yellow to a nice white. I do have some tetracycline stains that won't come out but I'll live with it. Much improved smile! Thank you!

Dog ate my dentist made mouth guard so I wanted to give this night guard a shot. I have a lot of discomfort from clenching my teeth at night. Affordable and comfortable! I have to use this all the time and glad it's comfortable!

Really gets the job done! This is so fantastic. My teeth and I are thankful!

Excellent value for the money. I was pleasantly surprised with how easy it was to take my impression. I remember the dental office impression process being messy but this was easy and straightforward. I honestly can't believe how well the night guard is working out. My dentist charges over $500 for a device similar to this one. So pleased with Sentinel!

FAST DELIVERY! I'm a terrible teeth grinder and have chewed up many store bought brands. Don't waste your time on one size fits all guards. This night guard is super comfortable. Service was fast and friendly. Will update if I see signs of wear. So far, so good!

I grind my teeth bad. My jaw can go from feeling awful to okay depending on the day or week.Even with pretty uncomfortable jaw pain, I still refused to wear a night guard. This went on for years. When I started getting sharp pains behind my eye I knew I had to do something. I tried the store bought ones. Waste of money. The Sentinel guard felt tight at first but now I'm used to it. My headaches and jaw pain are GONE! I wear it every night. It's truly made my life better. I feel younger strangely. Not in pain and grumpy. Thank you for making a life changing product Sentinel! I'm a customer for life.