Customer ratings & reviews

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!

Better than my ortho!! Impression process was easy. I love them! Customer service was very informative and friendly <3

This is a review about their customer service. This product just didn't work for me. I have a very bad gag reflex and was unable to use the trays to take my teeth impressions. I opened and used the impression kit they sent out and called them to tell them that I couldn't complete the process. They were so kind and issued my full refund immediately. Didn't even have to send back the materials! Even though I didn't end up getting a night guard, I was so pleased with the way they handled my issue. I will be back if I can ever get past this horrible gag reflex! Thank you again Sentinel. -Mary

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!