论文部分内容阅读
一、设计:基牙通常选择第二双尖牙,固位体设计三臂卡环,固位臂放置在颊面,卡环臂进入颊侧远中邻间隙倒凹区。用双(牙合)支托,放在第一、二双尖牙的(牙合)面。对抗臂在舌面设计成金属舌面板,并与连接体相连。间接固位体设在卡环对侧缺隙邻牙的舌隆突上,起支持和稳定作用。连接体设在第一双尖牙和前牙的舌面,它的宽度(高度)从第一双尖牙(牙合)端止于外形高点线上。在前牙盖过舌隆突,龈端在龈缘上0.5～1mm,要求与舌面弓形一致,紧贴舌面并进入舌外展
First, the design: Teeth usually choose the second pair of canine, retainer design three arm snap ring, retention arm placed in the buccal surface, snap ring arm into the buccal side near the gap reentrant area. With double (occlusal) support, on the first and second pairs of canine (occlusal) face. The arm is designed as a metal tongue on the tongue and connected to the connector. Indirect retainers are located on the opposite side of the snap ring adjacent to the tongue gallbladder, from the support and stability. The connecting body is located on the lingual surface of the first bicuspid and anterior teeth and has a width (height) that terminates on the contour line from the first bicuspid end. In the anterior teeth over the tongue kyphosis, gingival margin 0.5 ~ 1mm in the gingival margin, the requirements of the same bow and tongue surface, close to the tongue and into the tongue abduction