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D
Mewing (Tongue Posture)
Detailed instructions for Mewing (Tongue Posture) coming soon.
Jaw Clenching / Masseter Hypertrophy (Gum Chewing)
F
Contradicted/Unsafe
Research contradicts claims or shows potential for harm
N/A
Reps
N/A
Sets
Not recommended for jaw widening
Frequency
6-month RCT showed NO hypertrophy
Results In
Beginner
Difficulty
How to Perform
Detailed instructions for Jaw Clenching / Masseter Hypertrophy (Gum Chewing) coming soon.
Evidence Summary
A 6-month RCT found gum chewing increased occlusal force but did NOT increase masseter muscle thickness or change mandibular shape, contradicting 'wider jaw' claims.
Evidence Type: RCTs
Health Benefits
May improve occlusal force and contact area.
Cosmetic Benefits
Direct RCT evidence CONTRADICTS the 'masseter hypertrophy/wider jaw' claim from gum chewing.
How It Works
Masticatory training can increase bite force via neuromuscular coordination, but measurable hypertrophy may require different loading parameters or is limited in healthy adults.
Contraindications & Safety
TMJ flare, headaches, dental wear, bruxism reinforcement risk. Separate from pathologic hypertrophy seen with bruxism.
Goals This Helps
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