WaveOne和Mtwo镍钛器械用于感染根管一次性治疗的临床比较研究

The clinical comparative study of single-visit endodontic therapy for infected root canals by using WaveOne and Mtwo nickel-titanium instrument

目的:研究Wave One和Mtwo两种镍钛器械预备感染根管并进行一次性治疗的临床疗效。方法:选择患者70例共82个感染根管,随机分为Wave One组(42个根管)和Mtwo组(40个根管),分别采用Wave One和Mtwo镍钛器械预备根管并一次性根管充填。在预备前后,根管内取样进行厌氧菌接种培养,记录厌氧菌菌群数量变化;记录两组根备开始至完成一次性根充所需时间并对患者术后急性疼痛情况进行回访。结果:根管预备后,两组厌氧菌菌落数量均明显减少,Mtwo组菌落数量下降更多;Wave One组一次性根管治疗所需时间明显少于Mtwo组;Mtwo组在术后24 h急性疼痛情况较重,但在1周后两组患牙疼痛情况均明显改善且无明显差异。结论:Wave One和Mtwo镍钛器械应用于感染根管一次性治疗均有良好的临床效果,可在临床推广使用;两种镍钛器械各有不同特点,使用方法不一。

Objective：To study the clinical efficacy of single-visit root canal therapy for infected root canals by using WaveOne and Mtwo nickel-titanium instruments. Method ： A total of 82 infected root canals from 70 patients were divided into WaveOne group （n =42 ）and Mtwo group （n = 40 ）randomly. All root canals underwent canal filling immediately after comple- ting the root canal preparation. Samples were taken before and after root canal preparation that the number of anaerobic colo- nies was recorded after inoculation. The time of root canal therapy and the condition of acute pain were recorded. Results ： The numbers of anaerobic colonies in two groups were significantly decreased after completing the root canal preparation, and the number of Mtwo group decreased more The time of root canal therapy in WaveOne group was significantly less than Mtwo group. Acute pain of Mtwo group was more serious at 24 hours postoperatively, but the two groups of patients with tooth pain were improved and no significant difference after one week. Conclusion： WaveOne and Mtwo nickel-titanium instruments have good clinical results of one-visit endodontic therapy for infected root canals. However, clinicians need to pay attention to the different features of the two nickel-titanium instruments.