Three dimensional measurement of craniofacial hard tissues for the Han nationality with normal occlusion in Changsha area

Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences
Zhehang LiYonghua Lei

Abstract

To explore the influence of gender and age on the measurement of cone beam CT (CBCT) in normal and occluded craniofacial hard tissues for Han nationality in Changsha area.
 Methods: A total of 80 CBCT data of normal and occluded craniofacial hard tissues for Han nationality in Changsha area were collected, including 40 adults [16 males and 24 females, aged (17.57±1.83) years] and 40 children[16 males and 24 females, age (11.50±1.26) years]. Three-dimensional cephalometric measurements were carried out by Dolphion Imaging software, and the influence of gender and age was compared.
 Results: The symmetry of craniofacial hard tissues in male and female in the adults was good (the maximum asymmetric rate R was 6.39% and the minimum asymmetric rate R was 0.08%). There was no significant differencein the anterior palatal width, palatal width, the upper incisor protrusion distance, the lower incisor protrusion distance, hyoid-mandibular plane, basal epiglottis width, and palatal plane airway width between the males and females (all P>0.05); while the remaining indicators were significantly higher in males than those in females (all P<0.05). There was no significant gender difference in angle indicators (all P>0.05). There were signifi...Continue Reading

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