错矫治以后,一般均需对矫治的牙齿进行保持,以使矫治效果不致复发。为此,有各种各样的保持器。临床上常用Hawley氏保持器,改良式保持器,很多病人常需上下颌同时戴用,这就使病人总感到不舒服。有些病人由此自行停戴保持器,结果导致错复发。临床上也可在两侧下颌尖牙上做带环,带环之间焊接固定舌弓或直接将舌弓粘于舌隆突上。由于 After the correction, the general need to maintain orthodontic teeth, so that the effect will not be relapsed. There are various kinds of holders for this purpose. Clinically used Hawley retainer, modified retainer, many patients often need to wear the upper and lower jaw, which makes the patient always feel uncomfortable. Some patients thus stop wearing the holder, resulting in the wrong recurrence. Clinically also can be done on both sides of the mandibular canine with a ring, with a fixed ring between the tongue fixed bow or bow tongue gingiva tongue gall. due to