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. 2022 Jun 1;35(2):94–100. doi: 10.5152/TurkJOrthod.2022.22026

Table 1.

Definition of Cephalometric Landmark

1.
  • Sella (S)

The midpoint of sella turcica
2.
  • Nasion (N)

The extreme anterior point of the frontonasal suture/junction of frontonasal suture
3.
  • Orbitale (Or)

Inferior border of orbit
4.
  • Porion (Po)

Top of external auditory meatus
5.
  • Mx1r

The tip of the upper incisor root
6.
  • B point

The deepest point in the curvature of the mandibular alveolar process
7.
  • Pogonion (Pg)

The extreme anterior point of the chin
8.
  • Menton (Me)

The extreme inferior point of the chin
9.
  • Gnathion (Gn)

The midpoint between pogonion and menton
10.
  • Gonion (Go)

The midpoint of the mandibular angle between ramus and the mandibular corpus
11.
  • Md1c

The tip of the lower incisor
12.
  • Mx1c

The tip of the upper incisor
13.
  • Labiale superior (Ls)

Most anterior point on outline of upper lip (vermillion border)
14.
  • Labiale inferior (Li)

Most anterior point on outline of the lower lip (vermillion border)
15.
  • Subnasale (Sn)

Junction of nasal septum and upper lip in mid -sagittal plane.
16.
  • Soft tissue pogonion (Pg’)

Most anterior point on outline of ST chin.
17.
  • Posterior nasal spina (PNS)

The extreme posterior point of the maxilla
18.
  • Anterior nasal spina (ANS)

The extreme anterior point of the maxilla
19.
  • Articulare (Ar)

A point on the posterior border of the ramus at the intersection with the basilar portion of the occipital bone
20.
  • A point

The deepest point in the curvature of the maxillary alveolar process
21.
  • Md1r

The tip of the lower incisor root