Prognathism

Degree of projection of mid to lower facial region (around maxilla)

Significant projection, Moderate projection, Mild projection, No projection

Size of Browridges (postorbital tori)

Bony protuberance above the eyes; thickness and protrusion

Significant, moderate, mild, none

Browridge Shape

Continuous ‘unibrow’ bone with thickening in center (bar-like) versus brow ridges separated in the center by a depression (arching)

Bar-like, arching, none

Forehead

Sloping, vertical

Brain Size

Cranial Shape

Elongated length of cranium relative to width (e.g. oval, American football shaped) versus wider width relative to length (e.g. round, soccer ball shaped)

Elongated, globular

Widest point on cranium

When viewing the cranium from behind, the widest width

Bottom, Middle, High

Occipital Bone

Angled, rounded

Sagittal Keel

Thickening of the cranial bones along the midline of the skull

Present, absent

Occipital Bun

A backward-projecting bulge of the occipital part of the skull

Present, absent

Midfacial Projection and Inflated Cheeks

Forward projection of the middle face region, including the nose; cheek area puffs out rather than convex

Present, absent

Chin

Present, absent

Retromolar Space

Gap between the third molar and ascending mandibula ramus 

Present, absent

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