gnathion


Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to gnathion: pogonion

gnathion

 [nath´e-on]
the most outward and everted point on the profile curvature of the chin.

gnath·i·on

(nath'ē-on),
The most inferior point of the mandible in the midline. In cephalometrics, it is the midpoint between the most anterior and inferior point on the bony chin, measured at the intersection of the mandibular baseline and the nasion-pogonion line.
[G. gnathos, jaw]

gnathion

/gnath·i·on/ (na´the-on) the most outward and everted point on the profile curvature of the chin.

gnathion

[nā′thē·on]
Etymology: L, gnathos, jaw
the lowest point in the lower border of the mandible in the median plane. It is found on the bony mandibular border when palpated from below and naturally lies posterior to the tegumental border of the chin. It is a common reference point in the diagnosis and orthodontic treatment of various kinds of malocclusion and is an anthropometric landmark.

gnath·i·on

(nath'ē-on)
The most inferior point of the mandible in the midline. In cephalometrics, it is the midpoint between the most anterior and inferior point on the bony chin, measured at the intersection of the mandibular baseline and the nasion-pogonion line.
[G. gnathos, jaw]

gnath·i·on

(nath'ē-on)
Most inferior point of mandible in midline.
[G. gnathos, jaw]

gnathion (nā´thēon),

n the lowest point in the inferior border of the mandible at the median plane. It is a point on the bony border palpated from below and naturally lies posterior to the tegumental border of the chin.
References in periodicals archive ?
For the ear length, regression analysis and Pearson correlation showed that the distance between subnasale and gnathion can be used as a predictable determinant for length of the ear in all facial forms except tapering faces.
From the present study, we were able to conclude that the subnasale to gnathion distance was the most dependent variable with respect to the length of the ear, while both interalar distance and exocanthion to endocanthion distance correlate highly significantly to the width of the ear.
Para los hombres del grupo B, se observaron los siguientes resultados promedio en milimetros en cada punto cefalometrico: Triquion = 5,05; Supraglabela = 5,2; Glabela = 5,091; Nasion = 4,775; A' de downs = 10,191; B' de downs = 9,616; Pogonion = 9,016; Gnathion = 6,116; Superciliar = 5,1; Supraorbiatrio = 5,775; Exocanthion = 4,441; Infraorbitario = 6,783; Zygion = 8,658; Agujero mentoniano = 10,841; Gonion = 14,96.
Para las mujeres del grupo B, se observaron los siguientes resultados promedio en milimetros en cada punto cefalometrico: Triquion = 4,841; Supraglabela = 5,308; Glabela = 5,866; Nasion = 5,683; A' de downs = 10,208; B' de downs = 9,558; Pogonion = 10,208; Gnathion = 8,75; Superciliar = 7,691; Supraorbiatrio = 5,508; Exocanthion = 5,558; Infraorbitario = 7,083; Zygion = 10,633; Agujero mentoniano = 10,65; Gonion = 11,516.
05), al comparar los dos grupos etareos, en los puntos trichion, glabela, A de Downs, pogonion, infraorbitario, zygion, gonion, supraglabela, nasion, B de Downs, gnathion, supraorbirario y exocanthion.
The largest range was found among skeletal class I, II and III malocclusion patients were the point A to Subnasale distance and gnathion to soft tissue menton distance.
Sella to nasion(Sella Nasion plane) ANS to PNS (Maxillary plane) GOGn Gonion to Gnathion (Mandibular plane) Ramal plane Pogonion to Articulare Following skeletal linear measurements/Angular mea- surements were taken.