新型镍钛器械M3-PRO弯曲根管预备的临床研究

摘要/Abstract

摘要： 目的评价新型镍钛根管预备器械M3-PRO在弯曲根管预备中的临床效果。方法临床试验组：选择行根管治疗的70个弯曲根管，随机分为两组，分别使用镍钛器械M3-PRO和Protaper进行根管预备，摄平行投照X线根尖片比较M3-PRO和Protaper预备后弯曲根管充填情况及根管预备时间、诊间疼痛出现情况和器械分离情况，评价其对弯曲根管的预备效果。体外实验组：选择30颗国际标准ISO15号透明树脂模拟根管，预备方式同临床实验组，记录根管预备前后形态，进行根管中心定位能力对比研究。结果临床实验组:M3-PRO组恰填率为94.2%，Protaper组为91.4%，P＞0.05；M3-PRO组平均预备时间为（4.54±0.74）min，Protaper组（6.68±1.10）min（P＜0.01）；M3-PRO组诊间疼痛出现率为5.7%，Protaper组8.5%（P＞0.05）。实验期间两组器械均未发生器械分离情况。体外实验组：在距离根尖孔3、4、5、6mm处M3-PRO根管成形能力优于Protaper（P＜0.01）。结论M3-PRO可以满足临床上对于弯曲根管预备的要求。

关键词: [关键词] 弯曲根管, M3-PRO, Protaper

Abstract: ObjectiveTo evaluate the clinical effects of curved root canal preparation using M3-PRO.MethodsInclinical trial group, 70 curved root canals of permanent teeth were prepared using the instruments of M3-PRO (MP) and Protaper(PT) respectively(n =35).Standardized paralleling periapical radiographswere used to compare the curved root canal filling effect.The root canal preparation time,interappointment pain and instrument separation were compared. In vitro study,a total of 30 simulated root canals were divided into two groups. The pre-instrumentation and post -instrumentation images were recorded by microscope. The efficacy of the shaping ability of root preparation was analyzed.ResultsClinical trial group:The successful rate of canal filling: M3-PRO was 94.2% and the Protaper was 91.4%(P＞0.05). Thecanal preparation time: M3-PRO was （4.54±0.74）min and the Protaper was （6.68±1.10）min (P＜0.01). The rate ofinterappointment pain：M3-PRO was 5.7% and the Protaper was 8.5%(P＞0.05).No instrument separation appeared. In vitro study: The efficacy of the shaping ability of root preparation of M3-PRO was better than Protaper at 3, 4, 5,6mm away from apical.ConclusionM3-PRO can meet the clinical necessity for the curved root canals．

Key words: [Key words] curved root canals, M3-PRO, Protaper

中图分类号:

R781.05

吴迪丁秀娜周磊. 新型镍钛器械M3-PRO弯曲根管预备的临床研究[J]. , 2019, 39(2): 131-134.

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