C+锉在磨牙根管再治疗中的应用

Clinical evaluation of C+ files during root canal retreatment

摘要:

目的  评价C+锉应用于磨牙根管再治疗其疏通根管的临床效果。方法  选取需根管再治疗的磨牙60颗，随机分成2组，分别用C+锉和不锈钢K锉进行根管疏通，机用ProTaper完成根管预备并垂直加压充填，X线片评价根管疏通的效果。结果  C+锉疏通根管的成功率高于不锈钢K锉（P <0.05）,为87.7%。结论  C+锉在磨牙根管再治疗中有良好的疏通效果，但应注意预防根管侧穿。

Abstract:

Objective To assess the clinical effect of C+ files in root canal retreatment on molar teeth. Methods A total 60 molar teeth which needed endodontic retreatment were selected and randomly divided into two groups with 30 teeth in each group. The root canals were re-negotiated by C+ files and K-files respectively, and then prepared with rotary Pro Taper, all canals were obturated with vertical condensation technique. The success rates were calculated. Results The successful rate of re-negotiation of C+ files group was obviously higher than K-files group (P < 0.05), and the success rate was 87.7 ％. Conclusion The use of C+ files is proved effective in molar teeth root canal retreatment, but we should pay attention to prevent root canal perforation.