Customer ratings & reviews

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++++

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

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!

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!

I'm so glad I found Sentinel Mouthguards! The guards are made from high-quality materials and the company has a great warranty and return policy. I've recommended these guards to all my friends and family who suffer from tongue or cheek biting.

Great night guard! Exactly what I wanted. Fast and easy process. The fit is great! I'm very happy with my purchase.