Punctele cefalometrice

Punctele cefalometrice, după (1), sunt date în tabelul de mai jos. De asemenea, este prezentată și localizarea lor în figura 1.

Table 1 – Definitions of anatomical landmarks used in two-dimensional (2D) and three-dimensional (3D) images

 

 

Landmark Definition
1 Porion Most superior point of left external acoustic meatus (2D)
Most superior point of outer rim of left external acoustic meatus (3D)
2 Sella Geometric centre of the pituitary fossa located by visual inspection
3 Orbitale Most inferior point of left infraorbital rim
4 Nasion Most anterior point on frontonasal suture in the midsagittal plane (2D)
Midpoint of frontonasal suture (3D)
5 Basion Lowest point on anterior rim of foramen magnum (2D)
Most anterior point of foramen magnum (3D)
6 Supramentale Most posterior midline point in the concavity of the mandible between the most superior point
on the alveolar bone overlying the lower incisors and pogonion
7 Pogonion Most anterior midpoint of the chin on the outline
8 Gnathion Point located by taking the midpoint between the anterior (pogonion) and inferior (menton)
points of the bony chin (2D)
Most anterior and inferior point on contour of symphysis (3D)
9 Menton Lowest point on the symphyseal shadow of the mandible seen on a lateral cephalogram (2D)
Most inferior midpoint of chin (3D)
10 Gonion Point on curvature of the left angle of the mandible located by bisecting the angle formed by
lines tangent  to the posterior ramus and the inferior border of the mandible
11 Ramus point Most posterior point up the border of the left ramus
12 Midramus Most concave point on the anterior of the left ramus
13 Sigmoid notch Most inferior border along the top of the left ramus
14 Condylion Most posterosuperior point of left mandibular condyle in the sagittal plane
15 Subspinale Most posterior midline point in the concavity between anterior nasal spine and prosthion (most
inferior point on alveolar bone overlying maxillary incisors)
16 Anterior nasal spine Anterior tip of the nasal spine (2D)
Most anterior midpoint of the anterior nasal spine of the maxilla (3D)
17 Posterior nasal spine Posterior spine of palatine bone constituting the hard palate (2D)
Most posterior midpoint of posterior nasal spine of the palatine bone (3D)
18 Upper 6 occlusal Most inferior point of mesial buccal cusp of upper left first molar
19 Lower 6 occlusal Most superior point of mesial buccal cusp of lower left first molar
20 L1 labial gingival border Most anterosuperior point on the mandibular alveolar process, usually found near the
cementoenamel junction of the mandibular central incisors (2D)
Most anterior superior point on the mandible at its labial contact, in the median plane, between
the mandibular central incisors (3D)
21 L1 tip Midpoint of incisal edge of the most prominent lower central incisor
22 L1 root Root apex of the most prominent lower central incisor
23 L1 lingual gingival border Most posterosuperior point  on the mandibular alveolar process, usually found near the
cementoenamel  junction of the mandibular central incisors (2D)
Most posterior superior point  on the mandible at its lingual contact, in the median  plane,
between the mandibular central incisors (3D)
24 U1 labial gingival border Point of the maxillary alveolar process in the midline that projects most anteriorly  (2D)
Most inferior anterior point on the alveolar portion of the premaxilla, in the median  plane,
between the upper central incisors (3D)
25 U1 tip Midpoint of incisal edge of the most prominent upper central incisor
26 U1 root Root apex of the most prominent upper central incisor
27 U1 lingual gingival border Point of the maxillary alveolar process in the midline that projects most posteriorly  (2D)
Most inferior posterior point on the alveolar portion of the premaxilla, in the median  plane,
between the upper central incisors (3D)