...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Endodontics: Official Journal of American Association of Endodontists >Comparative Analysis of Dentinal Erosion after Passive Ultrasonic Irrigation versus Irrigation with Reciprocating Activation: An Environmental Scanning Electron Study
【24h】

Comparative Analysis of Dentinal Erosion after Passive Ultrasonic Irrigation versus Irrigation with Reciprocating Activation: An Environmental Scanning Electron Study

机译：无源超声灌溉后牙本质侵蚀对比分析与往复活化的灌溉：环境扫描电子研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Introduction: The aim of this study was to assess ex vivo the erosive effects of passive ultrasonic irrigation versus irrigation with reciprocating activation on the dentinal surface of the root canal at 3 predetermined levels using environmental scanning electron microscopy. Methods: Ten roots of mandibular premolars were prepared using the ProTaper Universal system (Dentsply Maillefer, Ballaigues, Switzerland). The specimens were embedded in flasks cleaved longitudinally, and indentations were made 3.0, 6.0, and 9.0 mm from the apex. The specimens in the control group (n = 10) were cleaned in an ultrasonic bath containing 2.5% sodium hypochlorite and 17% EDTA and then dried. Then, environmental scanning electron microscopic images were obtained at magnification x 800. The specimens were then reassembled in their flasks, and the NaOCl and EDTA solutions were activated according to the conditions established for the experimental groups (ie, the passive ultrasonic irrigation group [n = 5] and the EasyClean (Easy Equipamentos Odontologicos, Belo Horizonte, MG, Brazil) group, irrigation with reciprocating activation with the EasyClean instrument [n = 5]). The specimens of both experimental groups were analyzed in the same manner as in the control group. Analysis of the dentinal surface topography was conducted using the 3D Roughness Reconstruction program (Phenom-World BV, Eindhoven, the Netherlands) as a means for assessing erosion. The data were evaluated by means of the Kruskal-Wallis, Student-Newman-Keuls, and Mann-Whitney tests. Results: In the EasyClean group, the degree of dentinal erosion at 3.0 mm was significantly higher than at 9.0 mm. In the other comparisons, there was no statistically significant difference (P < .05). Conclusions: The final irrigation techniques tested were equivalent in relation to the degree of erosion caused to the dentinal surface.
机译：介绍：本研究的目的是评估以使用环境扫描电子显微镜的3预定水平在根管的牙齿对根管的牙本质表面上的往复式的侵蚀效果的评估。方法：使用ProTaper Universal System（Lentsply Maillefer，Ballaigues，Switzerland）制备十个下颌前磨牙的十根根。将标本嵌入旋转型烧瓶中，源于3.0,6.0和9.0mm的压痕。在含有2.5％次氯酸钠和17％EDTA的超声浴中清洗对照组（N = 10）中的样品，然后干燥。然后，在倍率×800处获得环境扫描电子显微镜图像。然后在其烧瓶中重新组装样品，并根据对实验组建立的条件激活NaOCl和EDTA溶液（即，被动超声灌溉群[n = 5]和EasyClean（Easy Equipamentos Odontologicos，Belo Horizo​​rye，Mg，Brazil）组，用easyclean仪器进行往复激活的灌溉[n = 5]）。以与对照组相同的方式分析了两种实验组的标本。使用3D粗糙度重建计划（Phenom-World BV，Eindhoven，Netherlands）作为评估侵蚀的手段进行牙本质地形的分析。通过Kruskal-Wallis，Student-Newman-Keuls和Mann-Whitney测试评估数据。结果：在Easyclean组中，3.0毫米的牙本质侵蚀程度明显高于9.0毫米。在另一种比较中，没有统计学上显着的差异（p <.05）。结论：测试的最终灌溉技术相当于对牙本质表面引起的侵蚀程度相同。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号