【摘要】 目的 对Herbst矫正器治疗中国儿童安氏Ⅱ类错邪给的效果进行观察。方法 应用Herbst矫正器对30名10～13岁安氏Ⅱ类错合患者进行治疗，以X线头影测量分析方法评价疗效。结果 Herbst矫正器可产生抑制上颌生长，刺激下颌生长的效果；同时也引起上切牙舌倾，下切牙唇倾及下磨牙近中向移动。结论 Herbst矫正器用于治疗中国儿童的安氏Ⅱ类错合，可产生显著的生长改良作用。
【关键词】 Herbst矫正器 牙畸形 错
The study on treatment of Chinese children's class Ⅱ malocclusion by Herbst appliance Xu Baohua, Urban Hgg.*School of Stomatology, Beijing Medical University, Beijing 100081
【Abstract】 Objective To study the effects of early treatment for Chinese children with class Ⅱ malocclusion. Methods 30 Chinese children were treated by Herbst appliance. The cephalometric analysis were used to evaluate the effects of early treatment. Results Herbst appliance can restrict the growth of maxilla and stimulate the growth of mandible, at the same time, the appliance leads to the retroclining of upper incisors, proclining of lower incisors and mesial movement of lower molars.Conclusion Herbst appliance can achieve remarkable effects of growth modification for Chinese children's class Ⅱ malocclusion.
【Key words】 Herbst appliance Dental deformation Malocclusion
Herbst矫正器是一种固定的功能性矫正器，用于治疗安氏Ⅱ类错合。因为患者可以每天24小时持续戴用，能产生抑制上颌骨生长、刺激下颌骨生长的效果［1］，因而在近十年来获得了广泛应用［2，3］。本项研究应用Herbst矫正器，对30名中国人安氏Ⅱ类错合患者进行了矫治；并以X线头影测量的方法对患者接受治疗前后牙齿及颌骨在前后向和垂直向的位置变化进行了研究。目的在于探讨该矫正器治疗中国人安氏Ⅱ类错合的矫治机理。
材料与方法
一、病例选择
骨
