[Cervical curvature. A cephalometric study in position of clinical rest].
BACKGROUND
Alterations in the head position and in cervical curvature are associated with mandibular dysfunction, an increased vertical occlusal dimension, upper airways obstruction and bad postural behaviors at work among other conditions.


OBJECTIVE
To perform a cephalometric analysis in young adults.


METHODS
Lateral cervical X-ray examinations were performed in 46 university students (26 female) aged 19 years old as a mean, Cephalometric landmarks and planes reported by Sollow & Tallgren, determined by investigators, were used for radiographic analysis.


RESULTS
The combined error of the method did not exceed 0.9 degree for any studied variable. Mean craniocervical angulations were 102 degrees for OPT-SNL, 109 degrees for CVT-SNL, 94.8 degrees for cranium-C2 and 105 for SN-vertical. There were significant sex differences in craniocervical angulations and these were abnormal in two thirds of subjects studies. The Forward Head Position is characterized by a cervical compensation with head inclination. This abnormal postural position showed a dolichofacial growth and an alteration of hyoid angle.


CONCLUSIONS
The craniocervical position appeared to be related to a vertical craniofacial growth pattern.
Sandoval
P
P
Henríquez
J
J
Fuentes
R
R
Cabezas
G
G
Roldán
R
R
D000328:Adult; D002508:Cephalometry; D002574:Cervical Vertebrae / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D008297:Male; D011187:Posture; D013121:Spinal Curvatures
Curvatura cervical. Estudio cefalométrico en posición de reposo clínico postural.