JustyⅡ应用于急性根尖周脓肿牙齿准确性的实验研究
Lingnan Journal of Emergency Medicine(2006)
Abstract
目的:研究JustyⅡ根尖定位仪应用于急性根尖周脓肿牙齿的测量准确性.方法:选取患急性根尖周脓肿的牙齿30颗,共30个根管,分别在根管溢脓、0.9%NaCl、3%H2O2、17%EDTA冲洗的情况下测量工作长度.四组均与根充后摄X线片确定的工作长度比较.记录在四种条件下JustyⅡ测量的准确率,进行Pearson X2检验.结果:JustyⅡ在四种条件下测得结果的准确率均无显著性差异.结论:Justy Ⅱ应用于急性根尖周脓肿牙齿仍有较高的准确性.
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Key words
apex locator,acute apex abscess,working length
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