Customer ratings & reviews

Thanks for the brighter smile Sentinel! A++++

I drink a ton of coffee and I just live my teeth whitening trays. Keeps my teeth from yellowing because I don't want to give up my coffee!

Had previous trays from my dental office. They were uncomfortable on my gums becuase they were cut straight across. Sentinel did a good job fitting them to my teeth and I can tell they took the time to make sure there were no rough edges. Better than the ones I paid $300 for at my dentist. Haven't used the whitening gel yet but will update this review after 1 week.

So excited! Just got my Sentinel teeth whitening kit and it is so comfortable to wear. Already have seen a difference in just two sessions. Can't wait to see what's going to happen after a month!

I ordered these a month before my wedding. I was worried I wouldn't get them in time but I got them quicker than expected. Results were great! My teeth were nice and white on my wedding day. Thanks so much! Customer for life!

I hope you guys never go anywhere because I don't want to ever have to go back to paying the prices at my dentist. I just ordered teeth whitening but I have had past night guards from you guys for years. I'm just as impressed with the quality of the teeth whitening system as I always have been with my night guards. Have told my family and friends and will continue to spread the word!

Absolutely amazing product. I have crooked teeth and most regular trays from the store just don't fit at all. I got these and now I can do jumping jacks while whitening! Not that I do that but still. The molding process took about 5 minutes. Mixed the putty for a minute, placed in tray & gently submerged my teeth. The whitening system is so good. Whitens my teeth incredibly well & I can just have them on at work or at the mall and you can't tell. Nice firm material makes them easy to wash with cold water.

I used this kit for a week before I left for a wedding and it worked GREAT! I was telling my friends about it at the wedding as well, Hopefully I got you some customers! THANKS!

So this might be a little gross but I had some stains on my teeth from sleeping with my mouth open. I had a deviated septum and it forced me to mouth breathe. It would dry my gums out and cause them to crack and I would have a little blood sitting on my teeth when i would wake. That and on top of being an avid coffee drinker I thought I was doomed. Their kit took the stains off my teeth so fast, I was really happy and I recommended this to my co-workers. thanks for giving me my smile back!

I used the "big spender" coupon and received a night guard plus the teeth whitening at a 20% discount. The dentists price for this would have been over $1000. So grateful to have found this service. -Merry