垂直参考平面法评估不同骨面型的侧貌特点  

Evaluation of soft tissue profiles in different skeletal classifications using the vertical reference plane

作　　者：陈辉[1] 王邦康[1] 

机构地区：[1]首都医科大学口腔医学院正畸科

出　　处：《北京口腔医学》2006年第2期116-119,共4页Beijing Journal of Stomatology

摘　　要：目的探讨垂线参考平面法评估中国年轻成人不同骨面型侧貌特点的临床应用价值。方法在临床病例资料中随机选择47名骨性Ⅱ类患者和41名骨性Ⅲ类患者,在头颅侧位片上建立垂直于自然水平面并经过软组织鼻下点的垂直参考平面,分别比较骨性Ⅰ、Ⅱ和Ⅲ类患者13个垂直间距的差异,对比不同骨面型的侧貌特点。结果三种不同的骨性矢状关系体现了明显不同的颌面特征,其主要差别表现在面下1/3的部位。女性Ⅲ类患者的上颌发育不足,但下颌过度发育的现象不明显;Ⅱ类患者中,男性比女性的下颌发育更趋于正常,且男性具有较佳的软组织代偿能力。结论利用垂线参考平面评估软组织侧貌及颌骨前部硬组织突度有较高的临床参考价值。Objective To analyze the maxillofacial profile of young Chinese adults with skeletal Class Ⅰ, Ⅱ or Ⅲ by means of vertical reference plane method based on standardized cephalometric records. Methods A vertical reference plane through subnasale was established. Thirteen linear measurements of the profile were obtained from lateral cephalograms of 66 Chinese adults （33 male, 33 female ） with normal occlusion, 47 Class Ⅱ patients （23 male, 24 female） and 41 Class Ⅲ patients （21 male, 20 female）. Results Three different skeletal classifications showed distinct craniofacial characteristics. The main differences were in the lower 1/3 of the face. In the female group with Class Ⅲ, the maxilla developed inefficiently with little mandibular extrusions. In Class Ⅱ cases, male showed a normal mandibular development and a better soft tissue compensation than female. Conclusion Vertical reference plane presents a valuable way to evaluate anteroposterior soft profiles and hard facial dimensions.

关 键 词：骨性分类 正常[牙合] 头影测量 软组织侧貌 

分 类 号：R783.5[医药卫生—口腔医学]