有關crimpable stops在damon system的workbook第p.133有提到,茲把原文po出來

Small tubes or one open-side tube crimped on either side of an anterior bracket to prevent archwires from sliding side to
side,causing a wire to poke out of the posterior tubes of the molars

The stops should always be placed anterior to the crowding on either side of a single bracket in an area where there is the least rotational deflection of the archwires

Some clinicians use light-cured composite(revolution by kerr)applied to the archwire on either side of a bracket to prevent
the archwire from traveling

所以crimpable stops的主要用途是防止弓絲的任意滑動,以免刺傷口腔黏膜,它強調的是,儘量放在擁擠地方的矯正器前面,這是牙體較無旋轉,弓絲才不至於形變大

也有的是使用光固化樹脂固定在弓絲上形成阻擋,這樣也可以替代stops來防止弓絲的滑動

使用上可以用tweed plier(轉矩鉗)朝stops一壓,就可以固定在弓絲上,也可以用crimpable stop plier來鉗挾固定

您常看到的stop都是放在前牙區,也有時候你會看到放在後牙區,這都是臨床上的應用,使用上需活用

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