Customer ratings & reviews

The process was smooth and I received my night guard for teeth grinding quickly. So far, my jaw feels much better and my headaches are not as frequent in the morning. I think I may need one for daytime too. Ugh! Either way, at least these are way more affordable than my dentist!

So glad they started offering the 3mm night guard. I grind so badly that my teeth were wearing through the 2mm hard guard. I've had this one for 8 months now and so far so good!

Communication is fantastic! The dental impression kit instructions are informative and detailed enough that I can actually tell what's going on. I took a great impression the first time around. Thanks Guys- GREAT SERVICE

Perfect Fit! ***** Easy to use process. Nice quality and very good replacements I hope this product last.

Easy and fast process! I was nervous about taking my dental impression but it was easy. No trips to the dentist anymore! I'm a Sentinel customer for as long as I'm grinding my teeth!

A++ Customer service!! Very pleased with my product..better than my dentist made

Excellent experience all around! The customer service stood out to me because they're so personable. I talked to two different people and both were very helpful and great communicators. I explained my problem. I bite my cheeks excessively and I did not know there to turn. They made me feel confident to choose Sentinel. I'm so glad I did. The guards are well made and work as intended. My damaged area has healed up and the pain had gone away. Much much appreciated and recommended.

I went with the thickest option. Love the customer service, process and the thicker material is still very comfortable (I was worried it wouldn't be). Sentinel does an outstanding job all around.

I was afraid these weren't going to work for me because the ones my dentist made for me were uncomfortable but these popped in and fit perfect. Comfortable and very high quality.

I'm a pretty hard grinder.. being that I've gone through a few night guards from my dentist which was getting really expensive. My husband did some research and he came across Sentinel and thought I should try them out. I was a little skeptical about taking my own impression at first but it ended up being pretty fun for my husband and I. We sent the impression back in a prepaid envelope. My nightguard came back in about 10 days and I was blown away with how well it looked and fit. I don't know why dentist charge so much seeing that companies like these don't have to. Getting ready to buy another as back up!