III类错牙合畸形的三维软组织分析：一项病例对照横断面研究。
A three-dimensional soft tissue analysis of Class III malocclusion: a case-controlled cross-sectional study.
作者信息
Johal Ama, Chaggar Amrit, Zou Li Fong
机构信息
a Institute of Dentistry, Bart's and The London School of Medicine and Dentistry , Queen Mary University of London , UK.
出版信息
J Orthod. 2018 Mar;45(1):16-22. doi: 10.1080/14653125.2017.1331893. Epub 2017 Jul 5.
OBJECTIVE
The present study used the optical surface laser scanning technique to compare the facial features of patients aged 8-18 years presenting with Class I and Class III incisor relationship in a case-control design.
MATERIALS AND METHODS
Subjects with a Class III incisor relationship, aged 8-18 years, were age and gender matched with Class I control and underwent a 3-dimensional (3-D) optical surface scan of the facial soft tissues.
RESULTS
Landmark analysis revealed Class III subjects displayed greater mean dimensions compared to the control group most notably between the ages of 8-10 and 17-18 years in both males and females, in respect of antero-posterior (P = 0.01) and vertical (P = 0.006) facial dimensions. Surface-based analysis, revealed the greatest difference in the lower facial region, followed by the mid-face, whilst the upper face remained fairly consistent.
CONCLUSION
Significant detectable differences were found in the surface facial features of developing Class III subjects.
目的
本研究采用光学表面激光扫描技术，通过病例对照设计比较8至18岁患有安氏I类和安氏III类切牙关系患者的面部特征。
材料与方法
选取8至18岁患有安氏III类切牙关系的受试者，与安氏I类对照组进行年龄和性别匹配，并对其面部软组织进行三维光学表面扫描。
结果
地标分析显示，与对照组相比，安氏III类受试者在前后（P = 0.01）和垂直（P = 0.006）面部尺寸方面，平均尺寸更大，在8至10岁和17至18岁的男性和女性中最为明显。基于表面的分析显示，面部下部区域差异最大，其次是中面部，而上面部保持相当一致。
结论
在发育中的安氏III类受试者的面部表面特征中发现了显著的可检测差异。
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