1) Mandibular portraction application
下颌前方牵引器
2) Maxillary protraction
上颌前方牵引
1.
Method Thirteen patients with skeletal class Ⅲ malocclusion in mixed dentition were treated by bonded biteplates with maxillary protraction.
方法 对 13例替牙期骨性反牙合儿童 ,采用牙列粘接牙合垫联合上颌前方牵引进行矫治 ,进行治疗前后X线头影测量分析。
2.
Objective To observe and evaluate the profile changes after maxillary protraction treatment for Class Ⅲ malocclusion.
目的观察与评价上颌前方牵引矫治器矫治骨性III类错后软组织侧貌的变化。
3) protraction facemask
前方牵引器
1.
Combined fixed appliance and protraction facemask to treat early permanent dentition Class Ⅲ malocclusion and close the extraction space.;
联合应用前方牵引器关闭拔牙间隙并矫治恒牙早期安氏Ⅲ类错
2.
A study of comparative effects on early permanent dentition Class Ⅲ malocclusion and closing extraction spaces of combined protraction facemask and sliding;
联合应用前方牵引器关闭拔牙间隙与滑动法关闭拔牙间隙矫治恒牙早期安氏Ⅲ类错的比较研究
4) maxillary protraction
上颌前牵引
1.
Effects of erigeron breviscapus on suture osteogenesis during maxillary protraction;
灯盏花对上颌前牵引中骨缝成骨的影响
2.
Expression of TGF-β_1 in maxillary sutures of rats after simulating maxillary protraction;
模拟上颌前牵引作用下大鼠上颌骨缝TGF-β_1的表达
3.
Influence of simulating maxillary protraction on the position of maxilla in SD rats;
模拟上颌前牵引对SD大鼠颅面部生长发育的影响
5) Maxillary protraction face mask
面罩式上颌骨前牵引器
6) Maxillary protraction
前方牵引
1.
Study of changes of hard tissues following application of combined rapid maxillary expansion (RME) and maxillary protraction therapy in skeletal class Ⅲ patients of different ages;
前方牵引联合快速扩弓矫治不同年龄骨性Ⅲ类错的硬组织变化
2.
Clinical analysis of treatment effects of sketetal permature classⅢ macclusion with rapid expansions and maxillary protraction;
前方牵引联合快速扩弓治疗早期骨性Ⅲ类错的临床研究
3.
Clinical study of changes in dentofacial morphology in skeletal class Ⅲ patients after pubertal growth by maxillary protraction;
上颌前方牵引治疗青少年骨性反的临床研究
补充资料：牵引变压器
工频单相交流电力机车上用于改变电源电压的装置。牵引变压器的作用原理和普通变压器相同。牵引变压器中有：同高压接触网相接的绕组，称为原边绕组或高压绕组；向硅整流器或大功率晶闸管和牵引电动机供电的副边绕组，称为牵引绕组；向机车上各辅助电机供电或有其他特殊用途的绕组，称为辅助绕组。牵引变压器的工作条件特殊，如在运行中受到振动，空间尺寸和重量受到限制，当副边绕组发生短路故障时各绕组承受相当大的短路作用力。为了适应这些条件，牵引变压器要能承受较高的电磁负荷，要用油强迫循环冷却，它的零部件和支撑件要有足够的强度。利用牵引变压器调压可以调节机车运行速度。调压方式有高压侧调压和低压侧调压。近年来通常用晶闸管调压来代替牵引变压器调压。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条