两种旋转镍钛器械去除Resilon/Epiphany牙胶尖的效果

Efficacy of Two Rotary NiTi Instruments in Removal of Resilon/Epiphany Obturants.

作者信息

Dadresanfar Bahareh, Iranmanesh Mahbubeh, Mohebbi Pooneh, Mehrvarzfar Payman, Vatanpour Mehdi

机构信息

Department of Endodontics, Dental Branch, Islamic Azad University of Medical Sciences, Tehran, Iran.

出版信息

Iran Endod J. 2012 Fall;7(4):183-8. Epub 2012 Oct 13.

PMID:23130077

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3487521/

Abstract

INTRODUCTION

The success of endodontic retreatment is related to the complete removal of the obturation material from the root canal system. The aim of this study was to evaluate the efficacy of Mtwo R and ProTaper retreatment files in removing the Resilon/Epiphany system with or without chloroform during retreatment.

MATERIALS AND METHODS

Sixty distal roots of first mandibular molars were prepared and laterally condensed with Resilon/Epiphany, then divided into four groups (15 each for retreatment): 1) Mtwo R/solvent; 2) Mtwo R; 3) ProTaper D/solvent; and 4) ProTaper D. The cleanliness of the canal walls was evaluated using radiography; a stereomicroscope and SEM. Data were subjected to ANOVA and Student's t-test.

RESULTS

Neither rotary system performed better than the other when considering the whole root canal, with or without solvent. In the apical portion, ProTaper/solvent showed the best result (P<0.05).

CONCLUSION

In Resilon/Epiphany retreatment cases, ProTaper/solvent was better in the apical portion; however when considering the whole canal, Mtwo R and the ProTaper D series had the same performance.

摘要

引言

根管再治疗的成功与从根管系统中完全去除充填材料有关。本研究的目的是评估Mtwo R和ProTaper再治疗锉在再治疗过程中使用或不使用氯仿去除Resilon/Epiphany系统的效果。

材料与方法

制备60颗下颌第一磨牙的远中根，并用Resilon/Epiphany进行侧方加压充填，然后分为四组（每组15颗用于再治疗）：1）Mtwo R/溶剂；2）Mtwo R；3）ProTaper D/溶剂；4）ProTaper D。使用X线片、体视显微镜和扫描电子显微镜评估根管壁的清洁度。数据进行方差分析和Student t检验。