去除直根管人工凹槽中的氢氧化钙：EDDY 超声激活与被动超声冲洗和 XPendo 根管锉的比较。

Removal of Calcium Hydroxide from Artificial Grooves in Straight Root Canals: Sonic Activation Using EDDY Versus Passive Ultrasonic Irrigation and XPendo Finisher.

机构信息

Department of Periodontology and Operative Dentistry, Westphalian Wilhelms University, Münster, Germany.

出版信息

J Endod. 2019 Mar;45(3):322-326. doi: 10.1016/j.joen.2018.11.001.

DOI:10.1016/j.joen.2018.11.001

PMID:30803540

Abstract

INTRODUCTION

The aim of the present study was to compare sonic activation using EDDY (VDW, Munich, Germany), passive ultrasonic irrigation (PUI), and mechanical activation using the XPendo Finisher (FKG Dentaire, La Chaux-des-Fonds, Switzerland) for the removal of calcium hydroxide from artificial grooves in straight root canals.

METHODS

The root canals of 90 human maxillary incisors with straight root canals were prepared using Mtwo files (VDW) up to size 40/.04, and the teeth were split longitudinally. A lateral groove in the apical or coronal part was prepared in each root half and filled with calcium hydroxide, and the root halves were reassembled. Five groups were established according to the removal techniques: group A, the XPendo Finisher; group B, EDDY; group C, PUI; group D, manual irrigation with a syringe; and group E, no irrigation (the control group). The activation procedures were performed for 30 seconds with 3 mL sodium hypochlorite 3% as the irrigant. The cleanliness of the grooves was scored under 10× magnification. The median of scoring was analyzed using the Kruskal-Wallis test (P = .05).

RESULTS

All activation techniques were significantly more effective in the removal of calcium hydroxide than manual irrigation (P < .05). Regarding the apical groove, EDDY and PUI were significantly more effective in the removal of calcium hydroxide than the XPendo Finisher (P < .05). No difference was found for the coronal groove (P > .05).

CONCLUSIONS

EDDY and PUI were significantly more effective in the removal of calcium hydroxide than the XPendo Finisher regarding the apical region. Manual irrigation was significantly less effective than all activation techniques.

摘要

简介

本研究旨在比较 EDdy（VDW，慕尼黑，德国）、被动超声冲洗（PUI）和 XPendo 抛光器（FKG Dentaire，拉绍德封，瑞士）对人工直根管凹槽内氢氧化钙的去除效果。

方法

90 颗上颌切牙的直根管采用 Mtwo 锉（VDW）预备至 40/.04 号，牙齿纵向劈开。在每个根管半段的根尖或冠部制备侧向凹槽并用氢氧化钙填充，然后重新组装根管半段。根据去除技术将牙齿分为 5 组：A 组，XPendo 抛光器；B 组，EDdy；C 组，PUI；D 组，注射器手动冲洗；E 组，不冲洗（对照组）。用 3%次氯酸钠 3ml 作为冲洗液，每个组激活 30 秒。在 10×放大倍数下对凹槽的清洁度进行评分。采用 Kruskal-Wallis 检验（P=0.05）对评分中位数进行分析。