trichion


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trich·i·on

(trik'ē-on),
A cephalometric point at the midpoint of the hairline at the top of the forehead.
[G. thrix, hair]

trichion

(trĭk′ē-ŏn) [Gr.]
The anthropometric point at which the midsagittal plane of the head intersects the hairline.
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*Manually computed distance between selected two reference points on a scaled graph sheet: 300 mm *Computed distance between the selected two reference points by Akinlolu-Raji image-processing algorithm on 3D facial image: 273 mm *Computed total face height (trichion - gnathion distance) using Akinlolu-Raji image-processing algorithm on 3D facial image: 160 mm.Conversion of computed total face height distance to live size = 160 x 300/273 mm=160 x 1.099 mm =175.8 mm
In the case of tapering faces, it is more accurate to use the glabella to trichion distance as a guide.
g = glabella, gn = gnathion, n = nasion, sn = subnasale, tr = trichion. Table 3.
En cada paciente se identificaron en total 15 puntos cefalo-metricos, 8 de ellos medianos: trichion, supraglabela, glabela, nasion, A' de downs, B' de downs, pogonion y gnathion; y 7 puntos paramedianos: superciliar, supraorbiatrio, infraorbitario, lateral de la orbita (exocanthion), zygion, agujero mentoniano y gonion, los cuales fueron marcados con un lapiz dermografico.
Los resultados muestran diferencias significativas (p >0.05) al comparar los dos grupos etareos, en los puntos B de Downs, gnathion, supraorbitario, infraorbitario, zygion, trichion, A de Downs, pogonion, exocanthion y gonion.