摘要
骨性Ⅲ类双颌矫治手术中双板的常规制作方法十分复杂,笔者对其制作方法进行改良,以简化制作程序。对需行双颌手术治疗的骨性Ⅲ类错患者,通过对术前正畸结束时X线侧位片直观治疗目标(VTO)的预测和模型外科分析,设计手术方法,估算截骨后骨移动量,并对其上颌异常情况进行分类。对于上中线正确且不需改变上颌平面的骨性Ⅲ类错患者,利用其平行模型和非解剖式架,通过单副模型法(两次前移上颌模型)和双副模型法(分别用于前移上颌模型和后退下颌模型)制作双板,既简化了程序,又可达到预期的手术效果。在临床上制作骨性Ⅲ类错双颌手术定位板时,结合患者的畸形情况,采取相应的制作方法,往往可达到事半功倍的效果。
The conventional methods on making double splints in presurgery of skeletal Class Ⅲ were complicated. To find an easy method for the improvement of the production of splints and simplify the making process, 17 severe skeletal Class Ⅲ patients accepted bimaxillary surgery after making double splints were used. According to visual treatment objective （VTO） forecasting on the lateral cephalometric radiograph of ending presurgical orthodontics and analyzing study models, the surgical methods were designed, the mobile osteotomy bone volume was estimated and the maxillary abnormity was classified. For the patients with right midline and without adjusting their occlusion plane, use the single model method（antedisplace maxillary model twice） or double models method（antedisplace maxillary model firstly, and then retrodisplace mandibular model）to make the double splints which guided the fixtion of bimax- illary surgery through their parallel models and simple articulators. The making process of the double splints was simplified and improved, and the postsurgery effects of all patients were satisfied. Therefore, for making the double splints of skeletal Class Ⅲ bimaxillary surgery, utilizing the proper method on the basis of the specific abnormal conditions of patients can simplify the production process and get twice the result with half the effort.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2008年第2期219-221,共3页
West China Journal of Stomatology
