Customer ratings & reviews

VERY IMPRESSED! AFFORDABLE AND GREAT FIT! This is a solid product with great customer service. I've worn the OTC guards before and never could sleep a whole night with one in. My experience is the opposite with this custom fit night guard. I can barely tell I'm wearing it and my jaw feels so much better!! My experience has been excellent. I wish I had gotten this sooner.

DON'T PAY THE DENTIST OFFICE PRICES! I feel like I should be telling everyone I can about this. I lose my retainers fairly often or my dog gets them so replacing them through the dentist became so expensive. I was skeptical about ordering because I thought there's no way these are the same. I received my retainers and immediately noted how well they're made. Tried them on and they fit better than my ortho!!! A+++++ Excellent service!

Truly great service at a great price! Well packaged box with clear instructions for taking my teeth impression. The mouth guard arrived about a week after I sent my impression off. Looks and fits extremely well. Couldn’t be more pleased. How do I upload a picture? Thanks, Marie

I was a little worried about the process but glad I did it! My custom retainers are made better than the ones at my dentist for hundreds of dollars less. I had to redo the first impression but they let you send in photos and they give prompt feedback. They included an extra set of putty in the teeth impression kit so I retook it that same day. Overall, I'm extremely happy with my retainers. I'll be back again when I lose this set :)

I have gone through other online companies and none of them compare to Sentinel! These guards are the absolute best. Customer service is friendly, shipping is FAST and the product fits perfect. I also LOVE that the material is safe and long lasting. I am a fan for life!

Works perfect!! I have had night guard from other online companies and the fit was never right. Received my Sentinel guard and have been using it for several nights. I love this one. Best night guard I've ever owned! Fit is perfect, quality is high and the process was FAST! A++++

Better than my dentist's guard! The process was easy, customer service was great and when I messed up my impression (and used the extra putty they provided), they still sent me another kit for free! I got the medium thick guard for moderate teeth grinding and my teeth feel protected, Very comfortable, well-made night guard!

This works!! Excellent product to stop tongue biting. My tongue is finally healed and pain-free! Thank you!

I've been using Sentinel dental retainers for the past few months and I'm really happy with the results. They're practically invisible and comfortable to wear. I can go about my day with confidence knowing my teeth not shifting.

Love this company!! I have ordered 2 guards from Sentinel plus a teeth whitening kit. Everything I've received has fit perfectly, it's high quality and the service is fast and friendly. Sentinel has my business for years to come. Thank you for doing things right!