Customer ratings & reviews

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!

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!

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!

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!

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.

I HIGHLY recommend this bite guard! I found this company, read all the reviews and ordered. Took the guard to my hygienist and she was impressed! I'm a customer for life. Considering ordering a second as a backup!

The process was simple, fast and the results were fabulous! The guards were high quality. My tongue has healed and currently I don't wear the guards as I don't need them. If I bite my tongue again, I will wear them to allow the area to heal. I am extremely pleased and would recommend!

My dentist had been recommending a night guard for my teeth grinding but I couldn't spend the money. Finally it got to the point where my teeth were wearing down, jaw was aching so bad, and I had headaches almost every morning. I found Sentinel online and the price is inexpensive compared to the dentist. I was sent a kit with the putty mixture and an extra set of putty in case needed. I took the impressions. FYI they make you take an upper and lower to check the bite before shipment. It took about a week and a half after I sent the impressions off to receive my night guard. It took me a few nights to get used to it but now I can't sleep without it! Wish I could give more than 5 stars. Excellent experience. Love that this is available to us as an affordable option.