在矫治安氏Ⅱ1错时,打开前牙咬合的途径不外乎两条,即压低前牙和伸长后牙。在Ｂｅｇｇ矫治技术中,两者传统上分别是通过弓丝的后倾支抗弯及Ⅱ类颌间牵引得以实现。而联合使用这两种手段是打开咬合的最佳途径[1]。我们在临床上应用固定矫治器配合上颌平面导板及斜面导板矫治此 In the correction of Angle â ... ¡â ... ¢ wrong â ... ¡, the way to open the anterior teeth occlusion is nothing more than two, that is, lower anterior teeth and elongated teeth. Begg orthodontic technique, the two traditionally through the arch wire after the buckling and bending Ⅱ class intermaxillary traction can be achieved. The combination of these two means is the best way to open the bite [1]. We use a fixed appliance in clinical practice with the maxillary plane guide and ramp guide correction