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镍钛合金根管器械预备弯曲根管的效果理想,已在国内外得到广泛使用。但临床上镍钛合金根管器械折断前往往无任何征兆,手用镍钛器械切割效率较不锈钢器械低,预备时需较大力量,易嵌入根管造成器械折断;而机用根管器械预备时因缺乏手感较手用镍钛器械折断几率更高[1]。器械折断会
Nickel-titanium alloy root canal preparation of curved root canal effect is ideal, has been widely used at home and abroad. However, the clinical nitinol root canal instruments often have no signs of fracture before, hand nickel-titanium instruments cutting efficiency is lower than the stainless steel instruments, the preparation of the need for greater strength, easy to embed the root canal causing the instrument broken; and machine with root canal equipment preparation When due to a lack of touch nickel-titanium handpiece more likely to break [1]. Instrument will be broken