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目的了解ProTaper手用镍钛锉治疗下颌第二磨牙C形根管的临床疗效。方法选择2007-01-2010-12就诊的112颗下颌第二磨牙为研究对象,分为镍钛锉预备组(P)和K锉预备组(S)进行根管预备。记录根管预备及充填的效果。结果 ProTaper手用镍钛锉组恰充率较高(P<0.05),治疗成功率亦较高(P<0.05)。结论 Pro-Taper手用镍钛锉对于下颌第二磨牙C形根管预备,根充效果好,成功率高。
Objective To understand the clinical effect of ProTaper hand nickel-titanium file on C-shaped root canal of mandibular second molars. Methods One hundred and twelve mandibular second molars treated during 2007-01-2010-12 were selected as research objects and divided into two groups: preparation of nickel titanium file (P) and preparation of K file (S) for root canal preparation. Record the effect of root canal preparation and filling. Results The ProTaper hand nickel-titanium file group had a higher positive charge rate (P <0.05) and a higher success rate (P <0.05). Conclusion Pro-Taper hand nickel-titanium file for mandibular second molar C-shaped root canal preparation, root filling effect is good, high success rate.