Mojgan Kachoei1, Azin Nourian2, Baharak Divband3, Zahra Kachoei4, Sajjad Shirazi5,6. 1. Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran. 2. Department of Orthodontics, Faculty of Dentistry, Zanjan University of Medical Sciences, Zanjan, Iran. 3. Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran. 4. Polymer Division, Chemistry Department, School of Science, University of Tehran, Tehran, Iran. 5. Dental and Periodontal Research Center, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran. 6. Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Abstract
AIM: To fabricate a friction-reducing and antibacterial coating with zinc oxide (ZnO) nanoparticles on nickel-titanium (NiTi) wire. MATERIALS & METHODS: NiTi orthodontic wires were coated with ZnO nanoparticles using the chemical deposition method. Characteristics of the coating as well as the physical, mechanical and antibacterial properties of the wires were investigated. RESULTS: A stable and well-adhered ZnO coating on the NiTi wires was obtained. The hardness and elastic modulus of the ZnO nanocoating were 2.3 ± 0.2 and 61.0 ± 3.6 GPa, respectively. The coated wires presented up to 21% reduction in the frictional forces and antibacterial activity against Streptococcus mutans. ZnO nanocoating significantly improved the surface quality of NiTi wires. The modulus of elasticity, unloading forces and austenite finish temperature were not significantly different after coating. CONCLUSION: This unique coating could be implemented into practice for safer and faster treatment to the benefit of both patient and clinician.
AIM: To fabricate a friction-reducing and antibacterial coating with zinc oxide (ZnO) nanoparticles on nickel-titanium (NiTi) wire. MATERIALS & METHODS: NiTi orthodontic wires were coated with ZnO nanoparticles using the chemical deposition method. Characteristics of the coating as well as the physical, mechanical and antibacterial properties of the wires were investigated. RESULTS: A stable and well-adhered ZnO coating on the NiTi wires was obtained. The hardness and elastic modulus of the ZnO nanocoating were 2.3 ± 0.2 and 61.0 ± 3.6 GPa, respectively. The coated wires presented up to 21% reduction in the frictional forces and antibacterial activity against Streptococcus mutans. ZnO nanocoating significantly improved the surface quality of NiTi wires. The modulus of elasticity, unloading forces and austenite finish temperature were not significantly different after coating. CONCLUSION: This unique coating could be implemented into practice for safer and faster treatment to the benefit of both patient and clinician.
Authors: C Pushpalatha; Jithya Suresh; V S Gayathri; S V Sowmya; Dominic Augustine; Ahmed Alamoudi; Bassam Zidane; Nassreen Hassan Mohammad Albar; Shankargouda Patil Journal: Front Bioeng Biotechnol Date: 2022-05-19
Authors: Vahid Mollabashi; Abbas Farmany; Mohammad Yousef Alikhani; Mohammad Sattari; Ali Reza Soltanian; Parnian Kahvand; Ziba Banisafar Journal: Int J Nanomedicine Date: 2020-11-10