Toffoli Andrea, Parisi Ludovica, Tatti Roberta, Lorenzi Andrea, Verucchi Roberto, Manfredi Edoardo, Lumetti Simone, Macaluso Guido M
Dental School, Department of Medicine and Surgery, University of Parma.
Materials for Electronics and Magnetism Institute, National Research Council.
J Oral Sci. 2020 Mar 28;62(2):217-221. doi: 10.2334/josnusd.19-0235. Epub 2020 Mar 11.
Titanium surface characteristics, including microtopography, chemical composition, and wettability, are essential features to achieve osseointegration of dental implants, but the choice of a particular surface topography is still a debated topic among clinicians. An increased level of implant surface hydrophilicity has been demonstrated to ameliorate osseointegration and shorten healing times. The aim of this work is to develop and test a suitable thermal-based method to enhance titanium surface wettability without modifying other characteristics of the implant surface. For this function, titanium discs with different surface topography have been thermally treated by testing different temperatures and excluding those that led to evident chromatic and morphological modifications. The selected surface gain in wettability after the treatment was assessed through contact angle measurement, chemistry modifications through x-ray photoelectron spectroscopy (XPS) analysis, and microtopography through scanning electron microscopy (SEM). Results showed a great enhancement in hydrophilicity on the tested surfaces without any other modification in terms of surface chemical composition and topography. A possible limitation of this method could be the persistent, although relatively slow, biological aging of the surfaces after the treatment. The present findings indicate that the described treatment could be a safe and effective method to enhance dental titanium hydrophilicity and thus its biological performance.
钛表面特性，包括微观形貌、化学成分和润湿性，是实现牙种植体骨结合的关键特征，但特定表面形貌的选择在临床医生中仍是一个有争议的话题。已证明提高种植体表面亲水性可改善骨结合并缩短愈合时间。这项工作的目的是开发并测试一种合适的基于热的方法，以提高钛表面润湿性，同时不改变种植体表面的其他特性。为此，通过测试不同温度并排除那些导致明显颜色和形态改变的温度，对具有不同表面形貌的钛盘进行了热处理。通过接触角测量评估处理后选定表面润湿性的增加，通过X射线光电子能谱（XPS）分析评估化学变化，通过扫描电子显微镜（SEM）评估微观形貌。结果表明，测试表面的亲水性有了很大提高，而表面化学成分和形貌没有任何其他变化。这种方法的一个可能局限性可能是处理后表面尽管相对缓慢但仍会持续发生生物老化。目前的研究结果表明，所描述的处理方法可能是一种安全有效的方法，可提高牙科钛的亲水性，从而提高其生物学性能。
