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首页> 外文期刊>Journal of prosthodontics: official journal of the American College of Prosthodontists >Influence of Post Space Preparation on the Apical Leakage of Calamus, Single-Cone and Cold Lateral Condensation Obturation Techniques: A Computerized Fluid Filtration Study
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Influence of Post Space Preparation on the Apical Leakage of Calamus, Single-Cone and Cold Lateral Condensation Obturation Techniques: A Computerized Fluid Filtration Study

机译：岗位空间制备对菖蒲顶部泄漏的影响，单锥和冷横向凝结取消技术：计算机化流体过滤研究

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Purpose Apical microleakage between the root canal and periapical tissues is considered a common cause of endodontic failure. The aim of this study was to evaluate the apical microleakage of various obturation techniques after immediate post space preparations with different drills. Materials and Methods One hundred twenty human single-rooted teeth were selected for this study. The coronal portions were removed to achieve a uniform length of 15 mm. All root canals were instrumented with ProTaper Next rotary files using crown-down technique. The 120 roots were randomly assigned to 3 experimental groups according to obturation technique (n = 40). The root canals were obturated with lateral condensation in group 1, single-cone technique in group 2, and Calamus 3D obturation system in group 3. Each group was divided into two subgroups (n = 20) according to drill types (Gates Glidden and Peeso drills) leaving 5 mm of apical gutta-percha. The apical microleakage was measured using the computerized fluid filtration meter method. The results were evaluated using Kruskal-Wallis test with Bonferroni Corrected Mann-Whitney U multiple comparison post hoc tests. Results There was no statistically significant difference between obturation techniques after post space preparation with Peeso drills (p > 0.05). In Gates Glidden drill groups, single-cone technique demonstrated higher leakage (0.0051 +/- 0.0037 mu l x min(-1) x cmH(2)O(-1)) than Calamus techniques (0.0019 +/- 0.0012 mu l x min(-1) x cmH(2)O(-1)) (p < 0.017). Conclusions Gates Glidden drills caused the highest apical leakage in teeth obturated with single-cone technique.
机译：目的根管和扰动组织之间的顶端微漏被认为是牙髓衰竭的常见原因。本研究的目的是在用不同钻头立即岗位制剂之后评估各种取消技术的顶端微漏。材料和方法为本研究选择了一百二十人单根牙齿。除去冠状部分以达到15mm的均匀长度。所有根运河都使用冠下技术用propaper下一个旋转文件进行了仪表。根据闭合技术（n = 40）随机分配120根rOots至3个实验组。根系管在第1组中的横向缩合，第2组中的单锥技术，组3中的菖蒲技术。根据钻孔类型（门丝凝聚和Peeso，每组分为两个子组（n = 20）钻头）留下5毫米的顶端Gutta-percha。使用计算机化的流体过滤仪方法测量顶端微漏。使用Kruskal-Wallis测试评估了Bonferroni校正Mann-Whitney U多比较后HOC测试的结果。结果用PEESO钻头后空间制备后的脱离技术之间没有统计学上有统计学意义（P> 0.05）。在盖茨玻璃钻钻群中，单锥技术比菖蒲技术（0.0019 +/- 0.0012 mu lx min（0.0019 +/-0.0012μmulx min（ -1）X CMH（2）O（-1））（P <0.017）。结论盖茨玻璃钻引起单锥技术闭合牙齿上的最高顶端泄漏。

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