材料和方法 15名上下前牙轻度拥挤的患者作为研究对象,其中男性4名,女性11名;年龄最小为11岁,最大为18岁,平均13.6岁;所有患者均使用可摘舌弓矫正器开展下牙弓,同时以分裂基托可摘矫正器开展上牙弓。 可摘舌弓的基本结构(图1)和制作方法:(1)以0.8毫米直径不锈钢丝弯制调节簧,其形状类似舌侧连续卡环,贴合于磨 MATERIALS AND METHODS Fifteen patients with mild crowding of the upper and lower anterior teeth were selected as study subjects, including 4 males and 11 females; the youngest was 11 years old and the oldest was 18 years old, with an average of 13.6 years. All patients underwent removable tongue correction Under the dental arch to carry out, at the same time to split the base can be extracted braces on the dental arch. The basic structure of the tongue can be abstract (Figure 1) and production methods: (1) to 0.8 mm diameter stainless steel wire bending adjustment spring, the shape of the tongue similar to the continuous snap ring, attached to the mill