Table 2 Definition of skeletal landmarks and linear measurements

1. Euryon (Eu) - the most lateral point of the cranial vault

1. Euryon width

2. Lateroorbitale (Lo) - the intersection of the lateral wall of the orbit and the greater wing of the sphenoid (the oblique line)

2. Lateroorbitale width

3. Medioorbitale (Mo) - the most medial point of the orbital orifice

3. Medioorbitale width

4. Zygomatic (Zyg) - the most lateral point of the zygomatic arch

4. Bizygomatic width

5. Condylar lateral (Cdl) - the point located at the lateral pole of the condylar head.

5. Condylar width

6. Zygomandibulare (Zmd) - the intersection between the lower margin of the zygomatic bone and the lateral contour of the mandibular ramus

6. Zygomandibulare width

7. Lateronasal (Ln) - the most lateral point of the nasal cavity

7. Lateronasal width

8. Maxillomandibulare (Mmd) - the intersection between the lower margin of the maxilla and the medial contour of the mandibular ramus

8. Maxillomandibulare width

9. Maxillare (Mx) - the point located at the depth of the concavity of the lateral maxillary contour, at the junction of the maxilla and the zygomatic buttress

9. Maxillary width

10. Mastoid (Ma) - the lowest point of the mastoid process

10. Mastoid width

11. Gonion (Go) - the point located at the gonial angle of the mandible

11. Bigonial width

12. Antegonion (Ag) - the point located at the antegonial notch

12. Antegonial width