上颌低位尖牙矫治的应力释放<br />-《中国美容医学》

文章信息/Info

Title:: Thestress Release of the Infraversion of Maxillary Canine in Orthodontic Treatment

Keywords:: Key words: displaced canine; infraversion; stress release; damon system; low friction

摘要:: [摘要]上颌尖牙唇侧异位萌出在临床上较为常见，其病因可能是因牙列拥挤导致。由于唇侧异位萌出的尖牙低位程度不一，
传统固定矫治技术认为当尖牙低位严重时，矫治弓丝不可直接将其纳入，否则会导致邻牙压低局部开牙合,甚至出现牙合平面的
切斜等。Damon系统则建议矫治早期尽量将错位牙纳入全牙列矫治，目前仅有文献报道尖牙异位的平均高度为（10.5±3.8）mm，
而无唇侧异位萌出尖牙平均高度的研究，萌出的尖牙低位程度不一，能否将其直接纳入全牙列矫治，需要谨慎对待。本文综
述了将低位尖牙纳入矫治系统后，尖牙及邻牙的应力释放情况，以期为临床矫治低位尖牙提供指导。

Abstract:: Abstract: It is more common in patients with maxillaryapically displaced canine caused by crowded dentition in literatures.The
anterior openbite which was the result of the intrusion of lateral incisor and first premolar would occur when engaged the severe
infraversion of canine in conventional stainless steel ligature system. Damon system recommended thatthe malposed teeth were
included in the orthodonticsas early as possible. Although there are a few reports that the mean values for the distance of the displaced
maxillary canines from the occlusal plane were (10.5±3.8)mm,it is still unclear about the infraversion of etrupted canine.The average
height of the ectopic canine from the occlusal plane were varied,whether it can level a vertically displaced canine using a continuous
arch wire directly, the stress release of the orthodontic systemwith apical canine will be the main content of this review.