1.
The R3 appliance is an appliance designed to be worn in the mouth to help address various
issues related to dental biomechanics. It is not a medical device and has not been evaluated by the FDA.
After
Drag to reveal · my unretouched result
R3 is the mouthguard I wear myself. Slip it in before bed and let your structure unwind while you sleep. No boiling, no fitting, no dentist.
- ✦My personal favourite. It doesn't touch your gums, so you'll actually wear it every night
- ✦Firmer silicone, made for clenchers and mouth breathers
- ✦One guard lasts up to a year
- ✦Works with your mewing and face-pulling, on its strongest setting
Colour
Choose your package
R3 mouthguard
- The R3 appliance with its case
- One-time purchase. No subscription
R3 + SupportMost guided
- Everything in R3
- 1 year in the EGK Biomechanics community
- Direct messages to get your questions answered
Please agree to the terms before continuing.
Worldwideshipping
Food-grade100% silicone
Securecheckout
Use code MEWOLOGY at checkout for 10% off
✦
No boiling required
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100% food-grade silicone
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Airflow breathing design
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Sized for every jaw
Watch it happen
The structure was always there.
This is my own face, filmed along the way. No filters, no surgery. Tap any video for sound.
Zero surgeries. Just structure.
Before and after
The key to a better jawline
"Will it ever get better?"
My face collapsed under braces
She had a vision
"This is normal"
Real Results
The structure was always there. We just helped it surface.
Members wear their mouthguard over night and for up to 3 hours a day. These are their own progress photos.
the method
Why releasing the tension works
A mouthguard isn't the whole method — it's the accelerator. Here's the biomechanics behind what you'll feel and see.
How it works
Wear it. Let the structure unwind.
Wear the mouthguard every night and a few hours during the day. As you do, the soft tissue of the jaw and skull begins to unwind — and a cascade of knock-on issues, from TMJ tension to poor sleep, starts to improve.
Complements mewing & face-pulling
Your mewing, on its strongest setting
Designed to support proper tongue posture and release jaw tension effortlessly. It enhances your mewing and thumb-pulling results.
What to expect
Your first months with R3
Everyone's structure unwinds at its own pace. This is what the journey usually looks like.
Nights 1 to 7
Getting used to it
Your teeth and gums will feel it. That pressure is the tension starting to release. Start with an hour or two and build up to the full night.
Weeks 2 to 4
It disappears at night
You'll sleep through with it in. Many people notice a calmer jaw in the morning and a different feel when they bite down.
Week 8
Change starts to surface
This is where most members start to see it: more room in the palate, a jaw that sits further forward, less TMJ tension.
Month 6 and on
Keep going
Size up as your palate widens and pair it with face-pulling. The guard is the accelerator, consistency does the rest.
Results vary from person to person. Progress photos on this page are members' own.
The method
Three steps, eight weeks
01
Find your size
Measure between your upper molars and match the chart — R1, R2 or R3 in your width.
02
Wear it nightly
Slip it in before bed. No boiling, no fitting — the silicone does the work while you sleep.
03
Watch it surface
Wider palate, forward jaw, calmer TMJ. Most members see change in eight weeks.
Sizing
Find your size
Bite into a slice of bread, measure between the outer edges of your upper last molars in centimeters, then match the chart.
In between sizes? Always take the bigger one. Palate under 6 cm — start with R1 in S.
Reviews
What R3 wearers say
3.0
★★★★★
2 verified reviews
★★★★★
Amazing and it works her videos explain a lot
Anonymous
★☆☆☆☆
Messed up my jaw
Anonymous Verified
Meet Katarina
I rebuilt my own face. Then I built Mewology.
My name is Katarina. After my master's in biology I began independent research to fix my own collapsed facial structure after years of braces — my features were fading and I was only 25.
I learned it's called craniofacial dystrophy: a modern condition that includes a narrow palate, recessed face, crowded teeth and it's caused by soft food, mouth breathing and poor posture.
I learned that beauty isn't about age. It's about biomechanics. I studied, rebuilt my structure and today I help others do the same.
Is R3 right for me if I'm just starting?+
Yes. R3 is my personal favourite and works for both beginners and people who have used a mouthguard before. It doesn't touch your gums, which makes it easy to wear every night.
How do I find my size?+
Bite into a slice of bread, measure between the outer edges of your upper last molars in centimetres, then match the size chart. In between sizes? Always take the bigger one.
Do I need to boil or mould it?+
No. R3 is ready out of the case. Rinse it, slip it in before bed, and the silicone does the work while you sleep.
How long should I wear it?+
Every night, and up to 3 hours during the day if you can. Start with an hour or two and build up as your jaw adjusts.
Does it replace mewing and face-pulling?+
No, it makes them work harder. The mouthguard is the accelerator. My free protocols show you how to pair them.
What's in the Support package?+
One year in the EGK Biomechanics community and support membership, with direct messages so your questions get answered along the way.
How long does one guard last?+
Up to a year. As your palate widens you may want to size up.
Shipping and delivery+
Orders usually ship within 48 hours and you'll get a tracking number by email. Delivery typically takes 9 to 13 days to most countries, including the US.
Your structure is waiting to surface.
Start tonight. One mouthguard, worn while you sleep.
Start with R3R3 Mouthguard
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