摘要
目的:比较Mtwo、S3和WaveOne这三种机用镍钛器械在磨牙重度弯曲根管预备中的临床应用效果;方法:将需行根管治疗的120颗重度弯曲根管(根管弯曲度大于25°)磨牙随机分成3组,分别用Mtwo、S3和WaveOne镍钛器械预备根管,3组均采用热牙胶充填。比较3组根管预备时间、器械损伤情况、根管成形以及充填效果。结果:根管预备时间比较,WaveOne组最短(2.48±0.83)min,S3组最长(6.13±1.72)min,三组间差异具有统计学意义(P<0.0001);器械损伤情况比较,S3组的损伤率低于Mtwo组和WaveOne组(P=0.004),而根管成形及充填效果比较,Mtwo组均优于S3组和WaveOne组(P<0.0001);结论:在重度弯曲根管的预备中,Mtwo的预备效果最好,而WaveOne更加省时,S3的器械损伤率更低。
Objective： To investigate the clinical effect of Mtwo, $3, and WaveOne nickel-titanium instruments in severely curved molar root canal preparation using a comparative analysis. Methods ：A total of 120 molars with severely curved root canals （root canal curvature 〉 25° ）with a need for root canal therapy were randomly divided into three groups which were treated with Mtwo, S3, and WaveOne nickel-titanium instruments, respectively. Warm gutta-percha obturation was performed for all groups. The three groups were compared in terms of root canal preparation time, instrumental damage, root canal shaping, and filling results. Results： The WaveOne group had the shortest root canal preparation time （2.48 ±0.83）rain and the $3 group had the longest time （6.13 ± 1.72）min. There was a significant difference between the three groups （P 〈 0.000 1 ）. The $3 group had a significantly lower rate of instrumental damage than the Mtwo group and the WaveOne group （P = 0.004）. The Mtwo group had significantly better root canal shaping and filling results than the S3 group and the WaveOne group （P 〈 0.000 1）. Conclusions： During severely curved molar root canal preparation, Mtwo has the best preparation performance. WaveOne uses the shortest time and S3 has the lowest rate of instrumental damage.
出处
《西南医科大学学报》
2017年第5期455-458,共4页
Journal of Southwest Medical University
基金
泸州市科技局项目[2010-5-17(3/2)]
关键词
机用镍钛器械
重度弯曲根管
根管预备
Rotary nickel-titanium instrument
Severely curved root canal
Root canal preparation
