Reviv is a flat guard that sits between your teeth while you sleep. It doesn't grip, clamp, or push them. That level surface gives your teeth room to settle over time. Three sizes, no mold. Pop it in after you brush, take it out in the morning.
Teeth Alignment Support
A door swings shut on its own — until you put something flat in the frame. Reviv uses that same simple idea. It sits between your upper and lower teeth. It keeps them from closing all the way. Your jaw settles against the plane instead of teeth pressing on teeth — every night, for as long as you're asleep. It grips nothing. It pushes nothing. Reviv takes the pressure off for hours. That's the entire job. The rest is time.
Crowding just means your teeth don't have enough room. Braces, aligners and expanders push teeth toward a planned spot. More force doesn't make more room. Reviv doesn't push a single tooth. It holds one flat surface between your teeth. Your teeth rest on it all night instead of pressing into each other. The flat surface gives them room to move and space better over time.
Reviv is slow on purpose. No schedule, no adjustment appointments, no date it's finished by. It goes in after you brush and you keep doing that. If you want teeth moved by a particular Saturday, this isn't it. If you'd rather skip the force entirely, this is it.
People using Reviv send us these photos. Same person, same camera, taken some time apart — head tipped back, looking straight up at the palate. Look for an expander in either shot — there isn't one. Just a flat plane at night, and time. People mention one thing when they send these: the tongue feels like it has more room than it used to. We won't tell you what to see. Compare the two shots yourself.
Ken founded Reviv. His theory, 10+ years in: the guard doesn't work on your teeth at all. Your jaw stays slightly apart all night. It rests instead of clamping. That rest puts a gentle, constant stretch on the soft tissue around the jaw. Stretched tissue eases. Eased tissue makes room. And in Ken's view, teeth tend to take the room they're given — no pushing required.
Braces announce themselves. Aligners mean a case on the restaurant table and a conversation you didn't want. Reviv happens with your mouth closed and your eyes shut. In after you brush, out in the morning, back in the case. Nobody ever finds out unless you say so.
It arrives ready to wear in one of three sizes. No boiling, no molding, no appointment. $80 is the whole cost, shipping included, with a 1-year replacement warranty. No renewal. No repeat order. No surprise charge on your card.
We'd rather tell you the annoying part up front than have you find it on night two.
"I started in December. I wear it most nights. I usually put it in while I'm reading, well before lights out. I wear it for about ten hours. The first week my jaw and temples ached a bit. The ache settled. Now putting it in is just part of going to bed."
Heather C., daily user
30,000+ people in 30+ countries sleep with one. A 3,000+ member community shares the routine. Every guard comes with a 1-year replacement warranty. Yours arrives. You use it that night.
4.8 from 577+ reviews
A firm silicone appliance worn while you sleep — one simple step that adds zero minutes to your day.
Soft silicone oral appliances worn while you sleep — one simple step, zero minutes added to your day.
Choosing the right mouthpiece size is crucial for your comfort and the effectiveness of our product. Here's a straightforward guide to help you make the best choice:
| Size | Length | Width | Height | Thickness | Best for |
|---|---|---|---|---|---|
| XL | 59.6 mm | 84 mm | 27 mm | 5 mm | Adults with large mouth sizes. |
| Large | 53.6 mm | 73.2 mm | 26 mm | 4.2 mm | Most adults |
| Medium | 46 mm | 63.5 mm | 23 mm | 4.1 mm | Teens & small adult mouths |
Watch how to measure your palate size with the simple bite-and-bread method:
If you're still uncertain about which size to choose, feel free to reach out to me at ken@getreviv.com.
