One-Time Tensioning Formation Technology of Single Steel Strand Wire of Anchor Cable of Steel Cantilever Installed Truss Arch Bridge 钢桁架拱桥悬臂安装扣索单股一次张拉施工技术
Both round wire and rectangular wire could intrude incisors, extrude premolars, level the curve of Spee and decrease the arch length. 方丝和圆丝摇椅弓均有使切牙压低双尖牙升高,打开咬合整平Spee曲线的趋势。
The experiment also show the removable heavy labial wire anchorage system is better than Nance palatal arch and lip bumper. 实验研究也显示在阻止磨牙近中移动方面,该系统优于腭托及唇挡。
The Design of Stand with Cement Steel Wire Net thin Shell Arch, Unidirection Suspension Structure 水泥钢丝网薄壳拱、单向悬挑结构看台设计
The combination of modified nance arch with straight wire arch technique is valid method. 改良Nance弓联合直丝矫治技术是一种有效的方法。
Methods The structure of deltoid arch wire fixed appliance is consist of deltoid arch wire and bracket with deltoid colpus. It is used to control the tooth's moving. 方法三棱滑切固定矫治器的结构,以三棱形弓丝和具有三角槽沟的托槽为主体,由它控制矫治牙在各个方向的移动而发挥矫治作用。