Customer ratings & reviews

I absolutely love it! My mouth feels so much relief and the customer service is spectacular. It is so much better than another company that I had tried previously. The fit is perfect for my mouth and I feel comfortable wearing it.

Been wearing mine for a few weeks and it's been a life changer. My headaches and jaw soreness are gone! I've had many night guards through the dentist. I've paid a lot of money for these things. It's nice to find an affordable option that still has the high quality I need. Thank you!

Soft, thin and comfortable! A+++++

Not super comfy at first but really nice looking. I love that they are super low profile and the quality is great for the price. I totally recommend these.

Love these retainers! I bought mine on Amazon and they are a better quality and better fit than my dentist. About to order your teeth whitening system too. Thank you for the great prices and service!

I am a severe grinder and had an extensive amount of dental work to correct cracked and shortened teeth. I've even cracked crowns. I was a bit skeptical about Sentinel but figured it would save me a lot down the line since I average about a night guard every 18 months. My $650 custom night guard has hairline cracks all over after just one year. The process was thoroughly explained in the email and customer service has been excellent. It felt tight at first, but I've already gotten used to it after just 3 nights. Not only that I saved $$$, I don't have to go to the dentist's for fitting, which alone is a big hassle. I cannot be happier!

This product is fantastic! This is for any mouth pain including cheek and tongue biting. I sent back my impressions and the guards were shipped to me within a few days. Honest company with a great product!

The product fits great! I've slept with it for about a week now and so far so good. I do bite my cheeks a little but I'm mainly using these as teeth protectors for my grinding and clenching. I'm hoping they hold up over time because they are soft and a little flimsy.

Be careful when taking your impression. They're very particular about making sure the impression is perfect. I had to redo mine. They did not charge me for the new kit they had to send out. Very happy with my retainers. They're cut and shaped with care. They fit like a glove. Just be sure to read all the instructions and capture all of your teeth evenly. Otherwise you'll have to redo it.

Tip from a customer who learned the hard way! Don't bite down into the putty. Keep your mouth relaxed and press the putty filled tray into your teeth evenly. After 3 tries I finally got it right! The sentinel team was gracious and gave me two free kits. Best company ever! My mouth guard fits perfect and my jaw feels so much better. No more popping and clicking!