Customer ratings & reviews

Great customer service is why I continue to return every 2 years for new guards that I have chewed through.

I am a repeat customer. I love you guys! I am a severe tongue biter and your guards have been lifesavers. Thank you!

You have been one of the best customer service experiences I have had. And your products are amazing. The whole user / client / customer experience is incredible. I’m sorry my situation didn’t work out. But I am glad my girlfriend will be able to continue to support and use your services. All the best to you!

I just wanted you to know I am so grateful to you guys, thank you so much for redoing my night guard in the thicker material. It absolutely did the trick and I am sleeping without jaw pain. I’m waking up without headaches and I just can’t thank you enough. But I wanted to thank you for going the extra mile and fixing that for me, and sending it so promptly. Y’all have a blessed day and drive safely!

I got my new mouth guard and it fits perfectly… Thank you sooo much! I admire your commitment to service and the excellent quality of your product. I pray that you continue to prosper

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!