Customer ratings & reviews

I got this for my mom as a Mothers Day gift to use for her high school reunion.It worked so well that I got one myself. Great buy!

I bought a dental guard from Sentinel and was so pleased with the service and fit of my sleep guard that I decided to try out the teeth whitening. I've always had little to no success with other whitening products so I was skeptical. I would recommend this whitening regimen to anyone. Worked absolute wonders on my coffee and tea stained teeth Happy camper!!

I didn't get a good impression of my back molars on my lower teeth (uppers were fine). The company quickly sent me a new kit explaining that I needed to retake my impression. I took my impression again and sent it off. Received my retainers about a week or so later. After wearing my retainers for a couple of weeks now I can say that I'm very happy with my decision. The price is much better than the dental office and I was impressed with the quality of their product and service. I will definitely be purchasing again when it comes time for a replacement.

I had been looking for something like this for quite a while. I clench my teeth so badly at work but I have to talk and smile during the day and didn't want to wear anything that people can see. I chose the 1mm and it's perfect! Thin and stays in place. Thank you!

Works quicker than I expected with fantastic results A++++

Great service and great product! I replaced my retainers after my dog chewed up my old set. The old set cost me $450 from my orthodontist. The process was easy. The material feels very similar to my old ones. Maybe a little thinner? The scalloped top is different than my old ones. They were cut straight across but these do seem to fit better. Product is as advertised in the pictures. Would recommend!

I have been having serious grinding issues since being locked at home- my teeth and surrounding areas including my jaw were in real pain every single day. My jaw would painfully pop when I ate anything or dared to open my mouth too wide- I was miserable. Bought way too many over the counter guards with minimal results. First use of the Sentinel guard and immediately noticed less pain- the very first night. I've stuck with it and all of my symptoms are near gone. This product works! I won't be going back to Walgreens. I'm sticking with quality.

Great product! Great service! I totally recommend Sentinel!!

Great product. Great customer service. Loved the way it fit. Really good!

Easy to use teeth whitening! I pop them in and watch tv. I had whiter teeth in 2 days.