高效改正单个牙转矩的门形辅弓

摘要

本文介绍一种用于改正单个牙转矩的门形辅弓.门形辅弓由不锈钢方丝弯制,呈拱门形,点焊于主弓丝上.通过门形辅弓和主弓丝同时作用施加转矩力,2～3个月后单个牙的转矩即可得到明显改善.%It is to address torquing an individual tooth using a gale spring. The gate spring is made of a rectangular stainless steal wire, in the shape of a gate, which is incorporated to the archwire by spot welding. Torque is generaled by the combined effects of the gate spring and the archwire. After 2-3 months, the gale spring can obviously torque individual tooth.