Qmix、MTAD与EDTA去除根管玷污层的实验观察

发布时间：2018-06-20 07:33

本文选题：根管冲洗 + 玷污层　；参考：《口腔医学研究》2017年11期

【摘要】：目的:扫描电镜下比较Qmix、EDTA与MTAD去除根管壁玷污层的效果。方法:选择40颗离体单根管下颌前磨牙,距根尖14mm处截冠,采用S3镍钛锉预备到3S,将样本依照终末冲洗剂的不同随机分成4组:A组:5mL 0.9%的生理盐水冲洗1min(阴性对照);B组:5mL 17%EDTA溶液冲洗1min;C组:5mL MTAD溶液冲洗1min;D组:5mL Qmix溶液冲洗1min。根管预备完成后,将牙齿沿近远中向纵行分成两半,实验样本处理后在扫描电镜下观察根尖1/3(距根尖1~2mm)、根中1/3(距根尖6~7mm)、根上1/3(距根尖10~12mm)处根管壁玷污层情况,并对数据进行统计学分析。结果:B、C、D组与A组(对照组)比较,差异具有统计学意义(P0.001);两两比较后,D组分别优于B组、C组,C组优于B组,差异均有统计学意义(P0.001);各组根上1/3优于根中1/3,根中1/3优于根尖1/3(P0.05)。结论:在本实验条件下提示:新型根管冲洗液Qmix能更有效地去除根管玷污层。
[Abstract]:Objective: To compare the effect of Qmix, EDTA and MTAD to remove the smear layer of the root canal wall under scanning electron microscope. Methods: select 40 isolated single root canal mandibular premolars, cut the crown from the root tip 14mm, and prepare the S3 nickel titanium file to 3S, and randomly divide the samples into 4 groups according to the difference of terminal irrigant: A group: 5mL 0.9% saline rinse 1min (negative control); B group: 5mL 17 %EDTA solution flushed 1min; group C: 5mL MTAD solution flushed 1min; D group: 5mL Qmix solution to develop 1min. root canal preparation completed, the teeth were divided into two halves along the near far middle, and the experimental samples were treated under the scanning electron microscope to observe the root tip 1/3 (apart from root tip 1~2mm), root tip (from root tip), root canal wall smear layer at root (from root tip), Results: B, C, D group and A group (control group), the difference has statistical significance (P0.001); after 22, D group is superior to B group, C group, C group is better than B group, the difference is statistically significant (P0.001). Conclusion: a new root canal irrigation solution Qmix can remove root canal smear more effectively.
【作者单位】：新疆医科大学第二附属医院口腔科;
【分类号】：R781.05

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