Impact of Material Composition and Surface Finish on the Bending Strength of Ultrasonic Irrigant Activation Tips.

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

Australian Endodontic Journal Pub Date : 2025-03-25 DOI:10.1111/aej.12940

Emmanuel J N L Silva, Jorge N R Martins, Victor T L Vieira, Abayomi Omokeji Baruwa, Gustavo De-Deus, Marco A Versiani

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Abstract

This study evaluated the design, surface finish, alloy composition, and bending strength of three ultrasonic tips-Ultra X Silver, Gold, and Blue-used for irrigant activation. Using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and bending strength tests, 30 ultrasonic tips were analysed. SEM revealed a flat, non-active tip design for all tips, with Ultra X Silver having the smoothest surface and Ultra X Gold the most irregular. EDS showed that Ultra X Silver was made of a titanium-aluminium alloy, while Ultra X Gold and Ultra X Blue were stainless steel. In bending strength tests, Ultra X Silver demonstrated the highest flexibility (315.3 gf), while Ultra X Gold had the lowest (474.5 gf). Statistical analysis showed significant differences (p < 0.05) in flexibility, surface characteristics, and composition. Ultra X Silver's smoother surface and titanium alloy enhance flexibility, ideal for curved canals, whereas Ultra X Gold offers durability but less flexibility.

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材料成分和表面光洁度对超声灌溉激活头抗弯强度的影响。

本研究评估了三种超声波吸头--银色、金色和蓝色--的设计、表面光洁度、合金成分和弯曲强度。利用扫描电子显微镜（SEM）、能量色散 X 射线光谱（EDS）和弯曲强度测试，对 30 个超声波吸头进行了分析。扫描电子显微镜显示，所有超声波吸头都是扁平的非活性吸头设计，其中 Ultra X 银吸头表面最光滑，而 Ultra X 金吸头表面最不规则。EDS 显示，Ultra X Silver 由钛铝合金制成，而 Ultra X Gold 和 Ultra X Blue 则是不锈钢。在弯曲强度测试中，Ultra X Silver 的柔韧性最高（315.3 gf），而 Ultra X Gold 的柔韧性最低（474.5 gf）。统计分析表明，两者之间存在明显差异（p

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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.