An in vitro comparative evaluation of dentinal crack formation caused by three different nickel-titanium rotary file systems in primary anterior teeth.

Q3 Dentistry

Journal of the Indian Society of Pedodontics and Preventive Dentistry Pub Date : 2022-04-01 DOI:10.4103/jisppd.jisppd_100_22

Bhatt Bhagyashree, Dinesh Rao, Sunil Panwar, Nihal Kothari, Surabhi Gupta

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引用次数: 1

Abstract

Context: Cleaning and shaping of the canals damages the root dentin which becomes a gateway to dentinal cracks and thereby causes failure of the treatment.

Aim: The aim of this study was to assess and compare dentinal crack formation caused by three different nickel-titanium (NiTi) rotary file systems in primary anterior teeth.

Settings and design: The present in vitro study is an experimental, comparative study.

Materials and methods: One hundred fifty extracted primary anterior teeth were included in this study. The teeth were randomly divided into five groups. Group 1: Pedoflex rotary file system, Group 2: Prime Pedo^™ rotary file system, Group 3: Kedo-S² rotary file system, Group 4: K-files, and Group 5: no instrumentation. Roots were sectioned and viewed under a stereomicroscope for the presence of any cracks.

Statistical analysis used: The data were analyzed using the Chi-square test and Kruskal-Wallis test.

Results: In the coronal, middle, and apical thirds, Group 2 showed a maximum number of crack formations in the middle third (57%), followed by Group 3 (43.3%) and Group 1 (36.7%). Groups 4 and 5 showed no crack formation in all the root sections. The middle third showed a maximum number of crack formations compared to the coronal and apical thirds.

Conclusions: Rotary systems render various benefits with an acceptable success in comparison to conventional hand instrumentation. Within the limitation of this study, it was found that Pedoflex rotary file system was the best with the least number of crack formations.

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三种不同镍钛旋转锉系统对初级前牙牙体裂纹形成的体外比较评价。

背景:根管的清洁和整形会损害根牙本质，从而成为牙本质裂缝的门户，从而导致治疗失败。目的:本研究的目的是评估和比较三种不同镍钛(NiTi)旋转锉系统在初级前牙中引起的牙本质裂纹形成。环境和设计:目前的体外研究是一项实验性的比较研究。材料与方法:150颗拔除的初级前牙纳入本研究。这些牙齿被随机分为五组。第1组:Pedoflex旋转文件系统，第2组:Prime Pedo™旋转文件系统，第3组:Kedo-S2旋转文件系统，第4组:k文件，第5组:无仪器。根被切片并在立体显微镜下观察是否有裂缝。采用统计学分析:采用卡方检验和Kruskal-Wallis检验对数据进行分析。结果:在冠状、中、尖三分之一中，组2中三分之一的裂纹形成最多(57%)，组3次之(43.3%)，组1次之(36.7%)。第4组和第5组各根段均无裂纹形成。与冠状和顶状三分之一相比，中间三分之一的裂纹形成数量最多。结论:与传统的手动仪器相比，旋转系统提供了各种好处，并取得了可接受的成功。在本研究的限制范围内，发现Pedoflex旋转文件系统是最好的，裂缝形成数量最少。

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

Journal of the Indian Society of Pedodontics and Preventive Dentistry Dentistry-Dentistry (all)

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

39 weeks

期刊介绍： Journal of Indian Society of Pedodontics and Preventive Dentistry (ISSN - 0970-4388) is the official organ of Indian Society of Pedodontics and Preventive Dentistry. The journal publishes original articles and case reports pertaining to pediatric and preventive dentistry.