蒙古族颅颌面软硬组织三维X线头影测量的临床意义

Clinical Significant on the Three-Dimensional of X-Ray Cephalometric of the Craniomaxillofacial Soft-Tissues and Hard-Tissues in the Mongolian

目的 :研究中国蒙古族正常成年人颅颌面软硬组织三维X线头影测量数据在临床中的作用。方法 :选择符合正常标准的蒙古族成年人 98名 (男女各半 ) ,对颅颌面软、硬组织进行三维X线头影测量分析。结果 :①颅颌面软组织的测量 :蒙古族与汉族相比 ,面型较平直 ,面部较宽 ;与美国白人相比 ,蒙古族的上唇位于下唇前方 ,美国白人的上唇位于下唇后方。相对国人汉族而言 ,蒙古族上、下唇位置均靠后 ;蒙古族本民族的面型女性比男性宽而短。②颅颌面硬组织的测量 :与蒙古族本民族相比 ,线距有性别差异 ,角度无性别差异 ,同一受检者左右相同项目测量 ,结果不完全一样。与不同民族相比 ,线距在矢状、横向、垂直三维方向与广东人、西安人有显著差异。结论 :①蒙古族正常成年人颅颌面左右侧的软硬组织存在着属于正常范围的不对称现象 ;②与不同民族和种族相比 ,蒙古族颅颌面软、硬组织形态具有明显的性别差异和种族特点 ;③本研究获取了蒙古族正常成年人颅颌面软、硬组织的三维X线测量数据 ,建立了蒙古族自己的数据库 ;④蒙古族成年患者在正颌外科和牙齿正畸的诊断、设计和治疗中 ,应参考本民族颅颌面软硬组织的正常值和属于正常范围的面部左右不对称现象。

Objective:The study on the clinical significance of the Three-dimensional of x-ray cephatometric value of the craniomaxillofacial soft-tissues and hard-tissue in the Mongolianadults with normal occlusion relation.Methods: 98 Mongolian adults(male:49 and female:49) with normal occlusion relation are chosen.Craniomaxillofacial soft-tissues and hard-tissues are studied by three-dimensional x-ray cephalometric.Results:①Differences are exist in the three-dimensional soft-tissues and hard-tissues items with different sexes and nations.When compared with Han,Mongolian are characterized by the less protruding,the greater width;Contrast to American,Mongolian adults upper lip is before the loner one a little.Lips station is behind when compared with Han;Face of Mongolian female is wider and shorter than those of male.②The results of three-dimensional cephalometric show that length is conneced with sexual diserepancy but angles isn't.There are differences when the same measurements of forth sides are compared.The Mongolian adults are different in sagittal and vertical and horizontal measurement when compared with Guangdong's and Xian's adults.Conclusion:①The Mongolian adults craniomaxillofacial hard-tissues and soft-tissues show asymmetrical appearance but it is normal.②Characters are exist in the Mongolian craniomanillofacial hard-tissues and soft-tissues three-dimensional items with different sexes and nations.When compared with other nations.③The study has establish the normal soft-tissues and hard-tissues value of three dimensional cephalometry of Mongolian.④We reference the normal value of mongolian craniomaxillofacial soft and hard tissues and the normal facial cases to diagnosis?design and treat the mongolia adult patients in the orthognathic surgery and orthodontics.