Beugre J B, Sonan N K, Beugre-Kouassi A M, Djaha F
Department of Orthodontics, Faculty of Dentistry, University of Cocody, Abidjan.
Odontostomatol Trop. 2007 Mar;30(117):34-44.
The aim of this study was to investigate if there are differences or not between African ethnic groups in order to determine any ethnic and regional differences in the facial morphology.
Lateral cephalograms of 53 young Ivorians, 50 young Senegalese and 62 young Chadians, obtained under the same conditions in each country, were measured. Ten skeletal, eleven dento-skeletal and twelve soft tissue variables were investigated.
The comparison of all these parameters (test t student) showed multiple differences between these groups. But, those from Senegal presented with a high degree of protrusion of the upper lip and incisors. Moreover they were strongly hyperdivergent compared to those from Côte d'Ivoire and Chad. The latter showed the least convex soft tissue profile.
There were certain differences in dental, skeletal and soft-tissue facial morphology between the three African populations compared. This study provided a better knowledge of facial morphology in this area of Africa and consequently a better adaptation of the treatment planning of cases requiring orthodontics and orthognathic surgery.
本研究的目的是调查非洲不同种族群体之间是否存在差异，以确定面部形态学上的任何种族和地区差异。
测量了在每个国家相同条件下获得的53名年轻科特迪瓦人、50名年轻塞内加尔人和62名年轻乍得人的头颅侧位片。研究了10个骨骼变量、11个牙-骨骼变量和12个软组织变量。
所有这些参数的比较（t检验）显示这些群体之间存在多种差异。但是，塞内加尔人上唇和门牙的前突程度较高。此外，与来自科特迪瓦和乍得的人相比，他们的矢状向差异更大。后者的软组织侧貌最不凸。
在比较的三个非洲人群中，牙齿、骨骼和软组织面部形态存在一定差异。本研究更好地了解了非洲该地区的面部形态，从而更好地调整了需要正畸和正颌手术病例的治疗计划。
