Kiruthigha Thirumal, Gokul Sridharan, Dhanraj Ganapathy, Ashok K. Sundramoorthy
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引用次数: 0
Abstract
Background: Orthodontic treatment relies on stainless steel (SS) wires to apply forces and torque to reposition teeth. However, SS wires are susceptible to wear and corrosion in the oral environment, necessitating improvements in their durability. Objective: This study explores the potential of a coating comprising titanium dioxide (TiO2) and polymethylene biguanide (PHMB) to enhance the corrosion resistance of SS wires. Methods: SS wires were coated with a solution containing PHMB and TiO2 using a drop-casting technique. Field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDAX), and electrochemical tests, including impedance spectroscopy and potentiodynamic polarization, were conducted to characterize the coated wires and evaluate their corrosion resistance. Results: FE-SEM, EDAX, and Emap analysis confirmed the presence and uniform deposition of PHMB/TiO2 onto the SS wire surface. Electrochemical tests revealed that the PHMB/TiO2- coated SS wires exhibited a significantly lower corrosion rate (7.08×10−6 mm/year) and higher corrosion resistance (562466 Ω) compared to bare SS. Conclusion: The PHMB/TiO2 coated SS wire exhibited high corrosion resistance and offered potential benefits for orthodontic treatments. Further research and optimization of this coating may help to improve the durability and reliability of orthodontic appliances.
背景:正畸治疗依靠不锈钢(SS)钢丝施加力和扭矩来调整牙齿位置。然而,不锈钢丝在口腔环境中容易磨损和腐蚀,因此有必要提高其耐用性。研究目的本研究探讨了由二氧化钛(TiO2)和聚甲基双胍(PHMB)组成的涂层增强 SS 钢丝耐腐蚀性的潜力。方法:采用滴铸技术在 SS 钢丝上涂覆含有 PHMB 和二氧化钛的溶液。采用场发射扫描电子显微镜 (FE-SEM)、能量色散 X 射线光谱 (EDAX) 和电化学测试(包括阻抗光谱和电位极化)来表征涂层金属丝并评估其耐腐蚀性。结果FE-SEM、EDAX 和 Emap 分析证实了 PHMB/TiO2 在 SS 金属丝表面的存在和均匀沉积。电化学测试表明,与裸 SS 相比,PHMB/TiO2- 涂层 SS 金属丝的腐蚀速率(7.08×10-6 mm/年)明显降低,耐腐蚀性(562466 Ω)明显提高。结论PHMB/TiO2涂层的不锈钢丝具有很高的耐腐蚀性,为正畸治疗提供了潜在的益处。对这种涂层的进一步研究和优化可能有助于提高正畸装置的耐用性和可靠性。
期刊介绍:
Current Nanoscience publishes (a) Authoritative/Mini Reviews, and (b) Original Research and Highlights written by experts covering the most recent advances in nanoscience and nanotechnology. All aspects of the field are represented including nano-structures, nano-bubbles, nano-droplets and nanofluids. Applications of nanoscience in physics, material science, chemistry, synthesis, environmental science, electronics, biomedical nanotechnology, biomedical engineering, biotechnology, medicine and pharmaceuticals are also covered. The journal is essential to all researches involved in nanoscience and its applied and fundamental areas of science, chemistry, physics, material science, engineering and medicine.
Current Nanoscience also welcomes submissions on the following topics of Nanoscience and Nanotechnology:
Nanoelectronics and photonics
Advanced Nanomaterials
Nanofabrication and measurement
Nanobiotechnology and nanomedicine
Nanotechnology for energy
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Computational nanoscience and technology.