Objectives

Utilizing Ti and Ti alloys as dental materials established a huge spurt in the field of dentistry. Since implantation is an invasive procedure that involves tissue penetration, infection control is mandatory for increasing the success rate of the implant treatment. In this study, we aimed to assess the impact of the surface physicochemical properties of acid-treated Ti on microorganisms specifically bacteria.

Methods

After investigating the surface morphology and characteristics of acid-treated and untreated Ti sheets, we evaluated their potential to capture Escherichia coli (E. coli.) as well as the latter’s survival on the surface of both types of sheets. Finally, we assessed the efficiency of the antibacterial properties exhibited by Ti against the oral microflora.

Results

SEM images revealed surface roughening of the acid-treated Ti represented by significantly irregular shape. Moreover, the acid-treated Ti exhibited remarkable hydrophobicity. A quantitative evaluation confirmed that acid-treated Ti has higher bacterial capture and antibacterial properties than untreated Ti. Further experiments showed similar effects of both types of Ti not only on E. coli but also on oral microflora.

Significance

Results suggest that acid treatment of Ti surface is a potent technique for enhancing the antibacterial properties of Ti-derived materials.

中文翻译：

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酸处理钛表面细菌捕获及抗菌性能研究

目标

使用钛及钛合金作为牙科材料在牙科领域掀起了巨大的飞跃。由于植入是一种涉及组织穿透的侵入性手术，因此必须控制感染以提高植入治疗的成功率。在这项研究中，我们旨在评估酸处理钛的表面理化性质对微生物（特别是细菌）的影响。

方法

在研究了酸处理和未处理的钛板的表面形态和特征后，我们评估了它们捕获大肠杆菌（E. coli.）的潜力以及后者在两种类型的钛板表面上的存活率。最后，我们评估了钛对口腔微生物群的抗菌特性的效率。

结果

SEM 图像显示酸处理 Ti 的表面粗糙化，表现为明显不规则的形状。此外，酸处理的Ti表现出显着的疏水性。定量评估证实，酸处理的钛比未处理的钛具有更高的细菌捕获和抗菌性能。进一步的实验表明，两种类型的钛不仅对大肠杆菌而且对口腔微生物群也有相似的影响。

意义

结果表明，钛表面的酸处理是增强钛衍生材料抗菌性能的有效技术。