Customer ratings & reviews

It was super easy to mold to my mouth. I read the directions and practiced with the empty tray before I begin (called customer service and that was a tip they had). The guard itself fit snug the first night but not uncomfortable. I was able to sleep no problem. I woke up with no jaw pain or headache. The relief literally came after one night of use. I've now worn it several times and it seems to be forming even better to my mouth. My dentist told me to purchase one from Sentinel because they're the exact same thing his office would offer but cheaper. Highly, highly recommend this product!

This is my 2nd set of retainers from Sentinel. First set I got through Amazon. Communication is better when you buy directly from the Sentinel website. I understand after speaking with the customer service that they;re a third party seller on Amazon which means that you're better off contacting them directly than going through the Amazon contact. They kept my teeth impressions in their file database and were able to make my 2nd set at a 20% discount. They fit just like the first. I'm very satisfied and will let others know about this great company.

I was hesitant because I didn’t know if I could take my own dental mold of my teeth. I messed up the first time but the kit included a backup putty pack. I emailed the company a picture and got an immediate response that the dental mold was good to go. Guard fits well. *****

I must have been born with big cheeks or something because I have bitten the inside of my cheeks for as long as I can remember. Sometimes it would be so bad that it would keep me up at night. I googled how to stop cheek biting and came across Sentinel. I called their customer service and had a few questions about the potential difficulty of taking my teeth impressions. The lady on the phone assured me that it was easy and that they supply extra putty in case I mess up. She was very kind and knowledgeable. Took about 10 days from the time I sent off my teeth impressions to receive my cheek protection guards. They fit perfectly and work perfectly. Happy with the process.

These worked great! I needed the heavy duty as I have been a teeth grinder for many years. Took an impression of both my top and bottom teeth but it's only to make sure the bite is correct. I'm so grateful because I have a bad overbite, but they still fit over my teeth perfectly! The guard stays in place while I'm sleeping! I've had a bad run with mouth guards in the past so I've been going off and on without protection for way too long. This is a lifesaver! I'm so happy it fits.

My dentist found some damage on my teeth from grinding. He recommended Sentinel as an affordable option. I checked out the reviews online and they're amazing. I'm grateful for the recommendation. The night guard is slim and fits perfectly to my teeth. It is a quality product.

I recently lost my dental retainer. I only wear a top one so I didn't need a lower one. Customer service said I could either order 2 top guards or get 20% off if I only wanted one. I ordered 2 top guards to be safe. I'm grateful I didn't have to spend $500 at my orthodontist. Exactly as advertised.

I bought this until I can fitted for an occlusal guard for TMJ. The TMJ guard I will be getting is $1200. Ouch! But I have some dental work coming up and I'm not going to spend that kind of money if my dental anatomy is going to be changing. It took a few tries before I got a good teeth impression. The instructions say not to "bite down" to form it to your teeth. I did bite down the first time and it caused distortion. I retook it and didn't get the teeth submerged enough. Used all the putty but the company sent me a new kit for free. This is a great temporary solution for me. I've only been using it for about a month but so far, I recommend it.

So easy to make the mold and fits like a glove!

Due to the pandemic, my teeth grinding went from bad already to worse. I'm currently on my 2nd night guard from Sentinel. Ordered my first one back in 2017 and now in May 2021. This is a great value. The product is high quality and a great bang for your buck. Customer service is always outstanding!