舌弓是正畸临床常用的一种固定矫治装置,它既可以用来维持牙弓的长度,防止间隙的丧失;也可以用来作为连接体,在其上焊接舌刺装置,以阻断吐舌习惯;同时还可以在舌弓上焊接副簧,以实现牙齿的近远中及唇颊向的移动等。舌弓矫治器的基本结构为在上颌或下颌的两侧第一或第二磨牙上制作固位带环,然后在其舌 Tongue bow is a orthodontic commonly used in a fixed orthodontic appliance, which can be used to maintain the length of the dental arch, to prevent the loss of space; can also be used as a connector body, on which the tongue welding device to block vomiting Tongue habits; the same time, the tongue can be welded on the secondary spring, in order to achieve teeth in the near and lip and cheek to move. The basic structure of the tongue bow appliance is to make a retaining ring on the first or second molar on either side of the maxilla or mandible,