Carano A, Testa M, Siciliani G
Department of Orthodontics, University of Ferrara, Italy.
Eur J Orthod. 1996 Oct;18(5):445-8. doi: 10.1093/ejo/18.5.445.
Class II molar relationships can be corrected by several methods. In previous systems, orthodontic forces have been applied to crowns and distal movement of the first molar has mainly been by tipping and a rotation of the crowns. A new Lingual Distalizer (LD) has recently been developed to distalize the maxillary molars without the drawbacks of previous appliances. The lingual distalizer is relatively easy to insert, is well-tolerated, does not require patient co-operation and is aesthetic. It distalizes molars without loss of anchorage and moves them with bodily translation.
II类磨牙关系可以通过多种方法进行矫正。在以往的系统中,正畸力作用于牙冠,第一磨牙的远中移动主要是通过牙冠倾斜和旋转实现的。最近研发出一种新型舌侧远中移动矫治器(LD),用于上颌磨牙远中移动,且没有以往矫治器的缺点。舌侧远中移动矫治器相对容易置入,患者耐受性良好,不需要患者配合,且美观。它能使磨牙远中移动而不丧失支抗,并通过整体平移移动磨牙。