应用螺旋装置活动扩弓矫正器的初步体会

• 作 者: 刘克恭 彭德馨 俞志英
• 机 构: 浙江医科大学口腔系,浙江医科大学口腔系,浙江医科大学口腔系,
• 出 处: 浙江医科大学学报
• 发表日期: 2004年期
• 关键词: 扩弓 分裂簧 活动矫正器 牙弓 扩大簧 钢丝 弯制 不锈钢丝 弯曲部分 基托

目前临床上常用的活动矫正器扩弓部分,均用0.7～1.0毫米的不锈钢丝弯制成U形、菱形或W形的分裂簧(即扩大簧)。扩弓时只需稍加力于钢丝的弯曲部分,使分裂基托沿着两侧展开,以达到扩大牙弓的宽度与弧长。一般3～4个月就可达到扩大牙弓的预期效果。

At present, clinically used active appliances to expand the arch part, are made of 0.7 to 1.0 mm stainless steel wire bend made of U-shaped, diamond or W-shaped split spring (that is, to expand the spring). When expanding the bow, only a little force is applied to the curved part of the wire, so that the split base expands along both sides so as to enlarge the width and arc length of the dental arch. Generally 3 to 4 months to achieve the desired effect of expanding the dental arch.