在正畸固定矫治器治疗中,弓丝结扎固定后,为防止刺伤口腔粘膜,往往需将结扎丝游离端压入到隐敝处,在拆除结扎丝时应先将结扎丝牵出以便拆除。我们自制了结扎丝牵压器,提高了工作效率。制作方法:利用牙科废旧探针或充填器,将其一端适当切去稍许,锤扁,其末端厚度约为0.5mm,宽1.2mm。然后用砂片开槽,制成宽约0.5mm,深 In the orthodontic appliance treatment, the arch wire fixation, in order to prevent stabbing the oral mucosa, often need to press the free end of the ligature into the hidden place, when removing the ligature should first pull the ligature wire to remove . We made a self-ligature wire retractor to improve work efficiency. Production methods: The use of dental waste probe or filler, one end of its appropriate cut slightly, hammer flat, the end thickness of about 0.5mm, width 1.2mm. Slotted with sand, made of about 0.5mm wide and deep