在往复和旋转运动中使用WaveOne Primary锉进行根管再治疗的有效性。

Patricia Marton Costa, Renata Maíra de Souza Leal, Guilherme Hiroshi Yamanari, Bruno Cavalini Cavenago, Marco Antônio Húngaro Duarte
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引用次数: 1

摘要

目的:本研究评估WaveOne Primary锉(Dentsply Sirona)在往复(RCP)和连续逆时针(CCR)两种运动方式下清除根管充填物的效果。材料与方法:采用RCP器械(25.08)制备20个下颌骨切牙,采用Tagger混合封闭技术进行充填。采用WaveOne Primary锉退牙,根据运动类型随机分为2个实验退牙组(n = 10): RCP组和CCR组。在插入的前3步中,将根管中的填充物清空,直到达到工作长度。记录所有样品的再处理时间和操作错误。在再处理之前和之后用微型计算机断层扫描标本,计算残余填充材料的百分比和体积(mm3)。结果采用配对和独立t检验进行统计评估,显著性水平设为5%。结果:两组间补牙拔除时间差异无统计学意义,分别为322秒(RCP)和327秒(CCR),差异有统计学意义(p < 0.05)。器械骨折6例:1例在RCP运动锉中,5例在连续旋转锉中。残余充填材料体积相似(RCP为9.94%,CCR为15.94%;P > 0.05)。结论:用于再治疗的WaveOne Primary锉在RCP和CCR运动中表现相似。两种移动方式都不能完全去除封闭材料,但RCP移动提供了更高的安全性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Effectiveness of endodontic retreatment using WaveOne Primary files in reciprocating and rotary motions.

Objectives: This study evaluated the efficiency of WaveOne Primary files (Dentsply Sirona) for removing root canal fillings with 2 types of movement: reciprocating (RCP) and continuous counterclockwise rotation (CCR).

Materials and methods: Twenty mandibular incisors were prepared with a RCP instrument (25.08) and filled using the Tagger hybrid obturation technique. The teeth were retreated with a WaveOne Primary file and randomly allocated to 2 experimental retreatment groups (n = 10) according to movement type: RCP and CCR. The root canals were emptied of filling material in the first 3 steps of insertion, until reaching the working length. The timing of retreatment and procedure errors were recorded for all samples. The specimens were scanned before and after the retreatment procedure with micro-computed tomography to calculate the percentage and volume (mm3) of the residual filling material. The results were statistically evaluated using paired and independent t-tests, with a significance level set at 5%.

Results: No significant difference was found in the timing of filling removal between the groups, with a mean of 322 seconds (RCP) and 327 seconds (CCR) (p < 0.05). There were 6 instrument fractures: 1 in a RCP motion file and 5 in continuous rotation files. The volumes of residual filling material were similar (9.94% for RCP and 15.94% for CCR; p > 0.05).

Conclusions: The WaveOne Primary files used in retreatment performed similarly in both RCP and CCR movements. Neither movement type completely removed the obturation material, but the RCP movement provided greater safety.

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来源期刊
CiteScore
0.20
自引率
0.00%
发文量
35
审稿时长
12 weeks
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