Al Ayoubi Alaa, Khandan Dezfully Alireza, Madléna Melinda
Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, University of Szeged, Tisza Lajos körút 64-66, Szeged, 6720, Hungary.
BMC Res Notes. 2020 Jun 3;13(1):270. doi: 10.1186/s13104-020-05115-0.
Malocclusion features differ across various populations and ethnicities. At this time, no data are available regarding the dentofacial differences between Syrian and European adolescents with Class II division 1 malocclusion, which is one of the most frequently treated pathologies in orthodontic practice. The present combined cephalometric and tooth-size study aimed to compare the dentoskeletal and tooth-size characteristics of Syrian and Hungarian adolescents with Class II division 1 malocclusion.
Class II division 1 malocclusion in Hungarian adolescents was a sagittal discrepancy, while in Syrian adolescents, it was a result of excessive vertical development. Syrian adolescents had a significantly excessive vertical development when compared with Hungarian adolescents, regardless of sex (p < 0.01). Hungarian boys had significantly more protruded maxillae (p < 0.001) and less retruded mandibles (p < 0.01) when compared with Syrian boys, while Hungarian girls had significantly shorter mandibles relative to those of Syrian girls (p < 0.01). Syrian girls had significantly more protrusive lower incisors (p < 0.001), accompanied by significantly larger anterior tooth-size ratios when compared to Hungarian girls (p < 0.001). In conclusion, these findings underscore the importance of considering ethnic differences during orthodontic diagnosis and may have implications for optimizing orthodontic treatments in Syrian and Hungarian adolescents with Class II division 1 malocclusion.
错颌畸形特征在不同人群和种族中存在差异。目前，尚无关于叙利亚和欧洲安氏II类1分类错颌畸形青少年牙颌面差异的数据，而该错颌畸形是正畸临床中最常治疗的病症之一。本项头影测量和牙弓尺寸联合研究旨在比较叙利亚和匈牙利安氏II类1分类错颌畸形青少年的牙颌面骨骼及牙弓尺寸特征。
匈牙利青少年的安氏II类1分类错颌畸形为矢状不调，而叙利亚青少年的该错颌畸形是垂直过度发育的结果。无论性别，叙利亚青少年与匈牙利青少年相比，均存在显著的垂直过度发育（p < 0.01）。与叙利亚男孩相比，匈牙利男孩的上颌显著前突（p < 0.001），下颌后缩程度较小（p < 0.01）；与叙利亚女孩相比，匈牙利女孩的下颌显著较短（p < 0.01）。叙利亚女孩的下切牙显著更前突（p < 0.001），与匈牙利女孩相比，其前牙弓尺寸比显著更大（p < 0.001）。总之，这些发现强调了正畸诊断时考虑种族差异的重要性，可能对优化叙利亚和匈牙利安氏II类1分类错颌畸形青少年的正畸治疗具有启示意义。
