Frequency and Performance Analysis of Polymer, Steel, and Titanium Ultrasonic Inserts in Intracanal Medication Removal

IF 3.6 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of endodontics Pub Date : 2025-10-01 DOI:10.1016/j.joen.2025.06.003

Guilherme Nilson Alves dos Santos DDS, MSc, PhD , Alice Corrêa Silva-Sousa DDS, PhD , Angelo José Sócrates Torres-Carrillo DDS, MSc , Guilherme de Araujo Braz PhD , Thais Oliveira Alves DDS, MSc , Fabiane Carneiro Lopes-Olhê DDS, MSc, PhD , Yara Teresinha Corrêa Silva-Sousa DDS, MSc, PhD , Jardel Francisco Mazzi-Chaves DDS, MSc, PhD , Ricardo Gariba Silva DDS, MSc, PhD , Manoel Damião Sousa-Neto DDS, MSc, PhD

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引用次数: 0

Abstract

Introduction

Ultrasonic inserts can be manufactured in various shapes, angles, and materials, this study evaluated the frequencies generated by steel, titanium, and polymer ultrasonic inserts using acoustic wave analysis and assessed the effectiveness of the iVac system and passive ultrasonic irrigation (PUI) compared to conventional irrigation for removing calcium hydroxide-based intracanal medication using micro-computed tomography (microCT).

Methods

Steel and titanium inserts from the Ultra X system (blue, silver, gold) and the polymer insert from the iVac system were analyzed using vibroacoustography in Ultra X (45 kHz) and Woodpecker (40 kHz) ultrasonic devices. Inserts were positioned in a water tank for standardized placement. The excitation signal was generated using MATLAB software, and power measurements were conducted in duplicate. After root canal preparation in 30 teeth, calcium hydroxide-based medication was applied and scanned using microCT. After 7 days, initial removal was performed with a K-file (number 45.02), followed by three protocols: conventional irrigation, PUI, or iVac. A second microCT scan was performed. Analysis of variance and Tukey's tests compared ultrasonic power and residual medication volume.

Results

The steel, titanium, and polymer inserts exhibited frequencies from 37 to 45 kHz. The iVac group (99.8 ± 0.3%) achieved greater medication removal than the PUI group (97.3 ± 2.9%), both significantly superior to conventional irrigation (73.0 ± 9.4%) (P < .05).

Conclusion

The ultrasonic power of the inserts operated within the expected frequency range. The iVac system demonstrated superior effectiveness in removing intracanal medication.

查看原文本刊更多论文

聚合物、钢和钛超声插入物在肛管内药物取出中的频率和性能分析。

超声植入物可以制作成各种形状、角度和材料，本研究利用声波分析评估了钢、钛和聚合物超声植入物产生的频率，并利用微计算机断层扫描（microCT）评估了iVac系统和被动超声灌洗（PUI）与传统灌洗去除基于氢氧化钙的管内药物的有效性。方法：在Ultra X （45 kHz）和啄木鸟（40 kHz）超声装置中，对Ultra X系统（蓝色、银色、金色）的钢和钛插入物以及iVac系统的聚合物插入物进行振动声分析。插入件被放置在水箱中进行标准化放置。利用MATLAB软件生成激励信号，并进行两次功率测量。对30颗牙进行根管预备后，应用氢氧化钙药物进行微ct扫描。7天后，用k锉（#45.02）进行初始去除，随后进行三种方案：常规冲洗、PUI或iVac。进行第二次微ct扫描。方差分析和Tukey的检验比较了超声功率和残余药物量。结果：钢刀片、钛刀片和聚合物刀片的频率范围为37 ~ 45 kHz。iVac组（99.8±0.3%）的药物清除率高于PUI组（97.3±2.9%），均显著优于常规灌洗（73.0±9.4%）(结论：插入物的超声功率在预期频率范围内。iVac系统在去除管内药物方面表现出卓越的有效性。

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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来源期刊

Journal of endodontics 医学-牙科与口腔外科

CiteScore

8.80

自引率

9.50%

发文量

224

审稿时长

42 days

期刊介绍： The Journal of Endodontics, the official journal of the American Association of Endodontists, publishes scientific articles, case reports and comparison studies evaluating materials and methods of pulp conservation and endodontic treatment. Endodontists and general dentists can learn about new concepts in root canal treatment and the latest advances in techniques and instrumentation in the one journal that helps them keep pace with rapid changes in this field.