单文件旋转系统的比较：第 1 部分-在根管再治疗中的效率、效果和不良影响。

Comparison between Single-file Rotary Systems: Part 1-Efficiency, Effectiveness, and Adverse Effects in Endodontic Retreatment.

机构信息

Division of Endodontics, University at Buffalo, Buffalo, New York.

出版信息

J Endod. 2018 Nov;44(11):1720-1724. doi: 10.1016/j.joen.2018.07.022. Epub 2018 Sep 19.

DOI:10.1016/j.joen.2018.07.022

PMID:30243662

Abstract

INTRODUCTION

The aim of this study was to evaluate in vitro the performance of 3 single-file systems: WaveOne Gold Primary (WOG; Dentsply Sirona, Ballaigues, Switzerland), Hyflex EDM "one file" (EDM; Coltene/Whaledent, Alstatten, Switzerland), and XP Shaper (XP; FKG, La Chaux de Fonds, Switzerland), for nonsurgical endodontic retreatment on mandibular anterior teeth in regard to the amount of remaining filling material inside the canal, debris extrusion, and operation time.

METHODS

Sixty extracted standardized mandibular incisors presenting with a single oval canal were prepared to size 30.04 and obturated using warm vertical condensation. After 30 days (37°C, 100% humidity), teeth were randomly divided into 3 groups (n = 20) according to the file used for retreatment (WOG, EDM, or XP operated at 3000 rpm). During the retreatment procedures, preweighed vials were used to collect apically extruded debris, and the time required to remove the filling material was recorded in seconds. Cone-beam computed tomographic scans were taken before and after the retreatment to determine the amount of remaining filling material inside the root canal space. Statistical analysis was performed using the Kruskal-Wallis test, 1-way analysis of variance, and the Pearson test at a 5% significance level.

RESULTS

There was a statistically significant difference among the groups regarding the instrumentation time (P < .05). XP was the fastest to remove gutta-percha from the canals (40.54 ± 28.03 seconds) followed by EDM (55.77 ± 19.76 seconds) and WOG (105.92 ± 53.92 seconds). The percentage of remaining filling was significantly greater for WOG (26.65% ± 14.63%) (P < .05). No difference was found between EDM (13.51% ± 9.53%) and XP (8.60% ± 7.28%). No difference was found regarding the amount of extruded debris among the 3 groups (P > .05).

CONCLUSIONS

XP was the most efficient in gutta-percha removal from the canals when operated at a higher speed (3000 rpm) followed by EDM and WOG.

摘要

简介

本研究的目的是评估 3 种单文件系统（WaveOne Gold Primary[WOG; 登士柏西诺德，Ballaigues，瑞士]、Hyflex EDM"one file"[EDM; 登士柏/伟瓦登特，Alstatten，瑞士]和 XP Shaper[XP; FKG，拉绍德封，瑞士]）在下颌前牙非手术根管再治疗中在根管内剩余填充物量、碎屑挤出和操作时间方面的性能。

方法

60 颗提取的标准化下颌切牙，具有单一的椭圆形根管，准备至 30.04 号并用热垂直加压法充填。30 天后（37°C，100%湿度），根据用于再治疗的锉（WOG、EDM 或 XP，转速为 3000rpm）将牙齿随机分为 3 组（n=20）。在再治疗过程中，使用预称重的小瓶收集根尖挤出的碎屑，并以秒为单位记录去除填充物所需的时间。在再治疗前后进行锥形束计算机断层扫描，以确定根管空间内剩余填充物的量。使用 Kruskal-Wallis 检验、1 方差分析和 Pearson 检验在 5%的显著水平下进行统计分析。

结果

在器械时间方面，各组之间存在统计学显著差异（P<.05）。XP 是从根管中去除牙胶速度最快的（40.54±28.03 秒），其次是 EDM（55.77±19.76 秒）和 WOG（105.92±53.92 秒）。WOG 的剩余填充物百分比明显更高（26.65%±14.63%）（P<.05）。EDM（13.51%±9.53%）和 XP（8.60%±7.28%）之间无差异。3 组之间挤出的碎屑量无差异（P>.05）。