Myo Munchee – Tween
Myo Munchee – Tween
£85.00
The Myo Munchee Tween is specifically designed for growing mouths, promoting jaw health, improving muscle tone, and encouraging better breathing through natural chewing.
Product Summary
Myo Munchee Tween
Myo Munchee Tween: for 8 to 14 years
The bridge between the child and adult sizes, covering the years when the adult teeth settle in. Habits formed now tend to stick, which makes this a useful window for building nasal breathing and jaw coordination.
The Science
Why chewing training changes oral health
Most of us underuse the muscles that shape how we breathe, swallow and rest the jaw. Gentle, rhythmic chewing retrains these patterns, strengthening the lips, tongue, cheeks and jaw through simple daily movement.
Stronger oral muscles
Targets lips, cheeks, tongue and jaw at the same time, building the functional tone behind better swallowing, posture and breathing.
Encourages nasal breathing
Closed-lip chewing trains a tongue-up, lips-sealed posture. Over time this repatterns the default from mouth breathing to calm, efficient nasal breathing.
Gum massage and saliva flow
Gentle chewing stimulates gum tissue and promotes natural salivary cleansing, supporting oral hygiene without chemicals.
Reduces grinding and clenching
Builds balanced jaw muscle coordination rather than raw strength, helping ease the tension patterns behind bruxism and TMJ discomfort.
Better sleep quality
Stronger oral muscles during the day mean a more stable airway at night, reducing mouth breathing, snoring intensity and interrupted sleep.
Effortless daily routine
No batteries, no app, no complex setup. Just gentle chewing during a morning routine, a commute or before bed.
Is the Tween the right size?
This listing is the Tween, for 8 to 14 years. Size is the biggest lever on whether the Munchee works, so start with the age guide and confirm with the inter-canine width.
| Size | Age guide | Inter-canine width |
|---|---|---|
| Mini | 18 months to 4 years | Use age guide |
| Junior | 4 to 8 years | 30 to 35 mm |
| Tween this size | 8 to 14 years | 33 to 37 mm |
| Adult | 14 years and over | 35 to 40 mm |
How to measure: take the straight-line distance between the tips of the two upper canine (pointy) teeth.
Fit check: Tween fits an inter-canine width of 33 to 37 mm. That overlaps Junior below and Adult above, so use age as the tie-breaker if a measurement could go either way.
Who the Tween is for
Mouth breathers
Most common
Older children and young teens who default to breathing through the mouth, day or night.
Snoring and poor sleep
Sleep
Snoring, restless nights or waking with a dry mouth. Daytime muscle tone supports the airway overnight.
Clenching and grinding
TMJ
Early signs of clenching or grinding respond to balanced jaw coordination rather than raw strength.
In treatment
Clinical
Used alongside myofunctional therapy or orthodontic treatment, on your clinician’s advice.
See It In Action
Watch: how to use the Myo Munchee
A short demo showing placement, technique and what to feel during use.
Audio Guide
Myo Munchee: features and benefits
Prefer to listen? A short explainer on what the device does and why it works.
This short audio explainer delivers trusted, evidence-based insights in an easy-to-listen format. The voice has been generated using AI technology, and all content has been written, reviewed and verified by the Breathe First clinical team for accuracy.
Breathe First
Emily Kirkcaldy
Founder & Lead Clinician at Breathe First
The Myo Munchee is one of the simplest tools I recommend to my patients. Whether it is a child who needs to build better oral habits or an adult struggling with snoring and mouth breathing, gentle daily chewing builds the muscle tone that underpins everything. I use it personally and with my own family.
Product Details
Everything you need to know
🧠 How to use it
Keep it simple. Gentle reps beat intensity.
- Place it: upper teeth in the top groove, lower in the bottom
- Lips closed: breathe through the nose where possible
- Chew gently: light and rhythmic, coordination not force
- Build up: Start at 3 to 5 minutes a day and build gradually towards 5 to 10 minutes.
- Rinse and store: rinse after use, air dry
✓ What it should feel like
A gentle workout, not pain or fatigue:
- Soft rhythmic chewing under the jaw and around the lips
- Lips closed, breathing through the nose
- Relaxed shoulders and neck, no tensing
- Mild muscle awareness, not soreness
If your child feel tension in the neck or jaw, reduce the intensity.
🧼 Care and what is included
Simple care, nothing complicated:
- Rinse after each use with warm water
- Let it dry fully before storing
- Keep in a clean, dry place
In the box: 1 × Myo Munchee Tween + quick-start usage guide
⚠️ Important notes
To get the best from the Tween:
- This is coordination training, not power chewing
- Supervise children under 5 for the whole session
- Consult your clinician if there is TMJ pain, braces or dental work
- Not a substitute for professional diagnosis or treatment
📋 Specs at a glance
| Device | Myo Munchee® chewing trainer |
|---|---|
| Size | Tween |
| Age guide | 8 to 14 years |
| Inter-canine width | 33 to 37 mm |
| Material | Medical-grade silicone (BPA/BPS-free) |
| Includes | 1 × Myo Munchee + quick-start guide |
| Daily use | 3 to 10 minutes of gentle chewing |
| Care | Rinse after use, air dry, store clean and dry |
| Shipping | 48hr tracked UK delivery |
❓ Tween FAQs
Is the Tween the right size for my child?
Tween covers 8 to 14 years. If your child is near either end, measure the inter-canine width: under 33 mm points to Junior, over 37 mm points to Adult.
Can they use it with braces?
Check with your orthodontist first. Fixed appliances and retainers change how the device sits, and your orthodontist knows the treatment plan.
Will they actually keep it up?
Five minutes while reading, gaming or watching something works better than a formal session. Consistency matters far more than intensity.
How long before we notice a difference?
Many families notice quieter breathing, less snoring and better lip seal within 2 to 4 weeks of consistent daily use.
* “Myofunctional Devices [such as the Myomunchee] are reportedly a clinically effective tool to support therapy for both children and adults with disorders associated with oromotor functions”, Hollie-Ann L. Shortland, Sally Hewat, Anne Vertigan and Gwendalyn Webb.
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