Facial Convexity Angle: Midface and Chin Profile Measurement

The facial convexity angle is how your midface sits between the upper face and chin. A common soft tissue construction uses glabella, subnasale, and soft tissue pogonion, with the vertex at subnasale. A more convex profile places the midface and lips farther ahead of the chin line. A straighter profile brings the three landmarks closer to one diagonal. Jaw relationship moves this number hard. It is a profile pattern measure, not a standalone attractiveness score.

For a common soft tissue angle, mark glabella, subnasale, and soft tissue pogonion. Draw glabella to subnasale and subnasale to pogonion. The internal angle at subnasale is the profile bend.

Other analyses use nasion instead of glabella or skeletal points such as point A. Those versions measure different anatomical layers. Always report the landmark set.

A profile near a straight line has an angle approaching 180 degrees under this construction. More forward midface position or more retrusive chin creates greater visible convexity and a smaller internal angle.

A retrusive mandible commonly increases convexity because pogonion moves back. A prominent mandible can flatten or reverse the bend. Maxillary prominence also changes the subnasale region and upper lip support.

Nasal morphology and craniofacial pattern show measurable correlations in lateral cephalometric analysis, reinforcing that the profile components develop and present as a system (PMID 33809695).

The angle does not diagnose the skeletal source by itself. You still need separate maxillary, mandibular, chin, and lip measures.

A retrospective study of adult orthodontic patients found quadratic and linear relationships between cephalometric measurements and profile aesthetics rather than a simple rule that more or less is always better (PMID 40120461).

That shape is biologically and visually plausible. Very convex and very concave profiles can both look imbalanced, while a wide middle zone can look coherent depending on sex cues, ancestry, and feature scale.

Orthodontic tooth movement can change lip support and the apparent soft tissue bend even when basal jaw position is unchanged (PMID 35461792). Chin procedures and jaw surgery move pogonion more directly.

Aging changes nasal projection, lip thickness, and chin soft tissue. When you compare over time, record age. Do not assume every angle shift is bone.

Use a true side profile with the brow, nasal base, lips, and chin fully visible. Keep the teeth gently together and lips relaxed. A protruded or pursed lip changes the surface contour.

Perspective also matters. A close camera enlarges the nose and midface relative to the chin. Stand back. Use moderate optical zoom.

Solar estimates facial convexity while separately reading chin projection, nasal projection, lip position, and lower face balance. That keeps one combined angle from hiding a specific weak or strong component.

The scan is a surface geometry analysis. It does not replace cephalometric imaging for skeletal diagnosis.

Facial convexity connects your upper face, midface, and chin in one pattern. It is also too composite to explain itself.

Name the landmark construction. Measure the component features. Read the result in the full profile, not against one universal ideal.

Read it against the rest of the measurements series. Trait context: what facial dimorphism is.

Want this measurement read across your own facial structure? Run the Solar facial analysis.