What it is
Orthotropics is a growth guidance approach, developed by John Mew, that focuses on the direction of facial development — specifically whether the face grows forward and horizontally or downward and vertically.
The approach centers on tongue posture, lip seal, and oral posture habits as factors that may influence the geometry of facial growth over time. It is associated with the London School of Facial Orthotropics and the use of appliances such as the Biobloc.
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How it looks
Quick visual profile
How to Recognize Orthotropics
Assess facial growth direction under neutral lighting, a relaxed expression, and a straight-on or true profile view.
- ✓ Facial height-to-width ratio: A vertically long face with a narrow width is often described in orthotropic literature as a downward growth pattern.
- ✓ Lip posture at rest: Whether the lips meet naturally without effort is a key postural cue discussed in growth guidance contexts.
- ✓ Chin and jaw angle in profile: A steep mandibular angle — where the jaw drops sharply rather than projecting forward — is a marker associated with downward facial growth.
- ✓ Midface projection: In forward-grown faces, the cheekbones and midface appear projected rather than flat when viewed from the side.
The clearest visual cue is the profile silhouette: a face with strong forward growth shows a compact vertical height and a jaw that sits relatively level, rather than angling steeply downward.
Visual Proportions & Measurement
Orthotropics uses the direction of facial growth as its primary reference point. The key visual comparison is between vertical face height and horizontal projection — how far the face grows down versus how far it grows forward.
In profile photographs, practitioners look at the angle of the mandible (lower jaw) relative to a horizontal reference. A steep angle suggests more downward growth; a flatter angle suggests more forward growth.
Lip competence — whether the lips touch at rest without muscular strain — is another observable reference. This is assessed in a relaxed, straight-on photo rather than a posed or smiling shot.
Digital facial analysis tools estimate these markers as visual references, not medical findings.
What People Commonly Get Wrong
| Common Claim | What the Feature Actually Describes |
|---|---|
| Orthotropics and mewing are the same thing. | Mewing is a popular internet simplification of tongue posture habits. Orthotropics is a broader growth guidance framework involving posture, appliances, and structured clinical observation — not just tongue placement. |
| Orthotropics can reshape adult bone structure. | The framework is primarily discussed in the context of growing children, where bone is still developing. Claims about adult bone remodeling through posture alone are not supported by established evidence. |
| Forward facial growth is always visually superior. | Orthotropics describes a direction of growth, not a universal aesthetic standard. Facial appearance is shaped by many factors, and no single growth pattern is objectively better. |
| Orthotropics is mainstream orthodontic practice. | Orthotropics remains a contested approach within dentistry. A 2014 commentary in the British Dental Journal noted its limited clinical footprint, and its evidence base continues to be debated among practitioners. |
Explore It on Your Photo
FaceAuraAI uses visual analysis to help you explore the appearance of these features; results are not a medical assessment.
Related Aesthetics Terms
Frequently Asked Questions
What does orthotropics actually study?
Orthotropics examines the direction of facial growth — forward and horizontal versus downward and vertical — and the role that oral posture habits may play in that development.
How is orthotropics different from standard orthodontics?
Standard orthodontics focuses primarily on tooth alignment; orthotropics focuses on the direction of overall facial growth, using posture guidance and appliances like the Biobloc rather than conventional braces alone.
Is orthotropics the same as mewing?
No. Mewing is an internet-popularized practice loosely derived from orthotropic ideas about tongue posture.
Sources
The following references were used in preparing this entry.