Customer ratings & reviews

My dentist sells this SAME EXACT KIT for $400. Same gel, trays everything. So glad I found it on here. My teeth get so white so quickly with this stuff. Thank you for making this affordable!

Wonderful results! My dentist doesn't offer deals like this! Lucky to have found you Sentinel!

Got the first one and it felt a little loose on one side of my mouth. Contacted Sentinel team, they told me that it was probably from the initial dental impression. Sent a new kit to me and the fit is flawless. My advice: Pay close attention when you take your teeth impression. If you feel like you messed it up I'd go ahead and contact them. They'll send a new kit for free. Overall, I give 5 stars. Customer service was on point.

It’s true there really is a learning curve to wearing a strange plastic thing in your mouth at night. However they do get more comfy overtime. Easy to do the putty process. Hopefully it will last a few years.

After getting a guard through sentinel I now have a slight disdain for my dentist. He tried to charge me $520.00 for the same guard I just got for 135 through sentinel... what a joke. Awesome Price, Awesome Guard!

I've been using the gel for only two days and I've already noticed a huge difference!! I definitely recommend! Satisfied customer!

5 stars!!!

Taking my dental mold was so easy, I mixed some putty together and placed it in the tray like a little snake. Simple enough. sent it back and got my custom trays! Very happy customer here!

This guard is the best I've ever worn. I'm missing all of my right side molars & still a superb fit. Hands down! The best! , Mary B.

Bought this for my boyfriend. My boyfriend loves that it is fitted, it is sturdy enough to hold its own shape but not stiff and uncomfortable.