Impact of Instrumentation Technique on Endodontic Treatment Quality in Curved Molars: A Retrospective Analysis.

IF 1.3 4区医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Australian Endodontic Journal Pub Date : 2025-05-26 DOI:10.1111/aej.12952

Carolina Clasen Vieira, Luciéli Andréia Zajkowski, Daniele Assumpção Prado, Fábio de Almeida Gomes, Patrícia Maria Poli Kopper, Katerine Jahnecke Pilownic, Daiana Elisabeth Böttcher, Tatiana Pereira Cenci, Erick Miranda Souza, Fernanda Geraldo Pappen

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引用次数: 0

Abstract

This cross-sectional study evaluated technical failures in root canal treatments (RCTs) of curved molars (> 10°) performed by undergraduate students and their association with instrumentation techniques. Evaluations included filling extension, density, taper and ledge/zip formation. Bivariate analysis (chi-square, 5% significance) calculated odds ratios (OR) and 95% confidence intervals (CI). Among 188 RCTs, manual instrumentation had higher risks of ledge/zip formation, inadequate density, taper and underfilling, while reciprocating techniques showed more overfilling. Root curvature did not influence failure rates. The study showed 100% power for detecting underfilling, inadequate density and taper; 97.98% for overfilling and 71.11% for ledge/zip formation. Instrumentation technique significantly impacted failure frequency, with manual techniques associated with more complications.

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器械技术对弯曲磨牙根管治疗质量影响的回顾性分析。

本横断面研究评估了本科生在弯曲磨牙（bbb10°）根管治疗中的技术失败及其与器械技术的关系。评价内容包括充填延伸、密度、锥度和边缘/压缩地层。双变量分析（卡方，5%显著性）计算优势比（OR）和95%置信区间（CI）。在188项随机对照试验中，手动仪器存在较高的隆起/凹陷形成、密度不足、锥形和欠填充风险，而往复仪器存在较多的过填充风险。根部曲率对故障率没有影响。研究表明，检测欠填、密度不足和锥度的能力为100%；过充填率为97.98%，岩脊/zip层为71.11%。仪器技术显著影响故障频率，手工技术与更多并发症相关。

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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来源期刊

Australian Endodontic Journal DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.50

自引率

6.20%

发文量

审稿时长

>12 weeks

期刊介绍： The Australian Endodontic Journal provides a forum for communication in the different fields that encompass endodontics for all specialists and dentists with an interest in the morphology, physiology, and pathology of the human tooth, in particular the dental pulp, root and peri-radicular tissues. The Journal features regular clinical updates, research reports and case reports from authors worldwide, and also publishes meeting abstracts, society news and historical endodontic glimpses. The Australian Endodontic Journal is a publication for dentists in general and specialist practice devoted solely to endodontics. It aims to promote communication in the different fields that encompass endodontics for those dentists who have a special interest in endodontics.