Customer ratings & reviews

My dentist found some damage on my teeth from grinding. He recommended Sentinel as an affordable option. I checked out the reviews online and they're amazing. I'm grateful for the recommendation. The night guard is slim and fits perfectly to my teeth. It is a quality product.

Jaw pain and headaches are GONE! I grind my teeth and have some TMJ-like symptoms. This guard makes my morning so much better. My jaw and I thank you!

A++++ Quality is great!

Hands down, the best night guard out there. I've used so so many.. I notice a difference in my teeth/jaw if I miss even one day. I have contacted the company with inquiries, and the customer service reps have always gotten back to me with great response. *****

Got the first one and it felt a little loose on one side of my mouth. Contacted Sentinel team, they told me that it was probably from the initial dental impression. Sent a new kit to me and the fit is flawless. My advice: Pay close attention when you take your teeth impression. If you feel like you messed it up I'd go ahead and contact them. They'll send a new kit for free. Overall, I give 5 stars. Customer service was on point.

Bought this for my boyfriend. My boyfriend loves that it is fitted, it is sturdy enough to hold its own shape but not stiff and uncomfortable.

Great value, low price. Works great, and looks nice. This is my second night guard I've bought from this company (first on on Amazon). These are made very well, and last quite a long time. First one I bought in 2017. I have been avoiding going to the dentist since COVID19 hit so it is nice that this option exists for us.

My daughter got a custom bite guard from a dentist before. He took a mold of her teeth just like this. As far as I can tell, the only difference was that it cost more to get the bite guard from the doctor. This product is working great. Prompt, hassle- free delivery.

This mouthguard is so comfortable. The quality of material is great. It's flexible, bendy, light weight and the product fit perfectly well to my imperfect teeth. I've tried the store bought types. It's hard for me to find my size because of my crooked teeth. This custom option is a perfect fit. I've told so many people about you guys you should pay me for advertising your brand????

Solid product! 5 stars! Highly recommend!