Antimicrobial Effect of Nano-Zinc Oxide and Nano-Chitosan Particles in Dental Composite Used in Orthodontics

Dental Research Center, Dentistry Research Institute , Department of Orthodontics, Tehran University of Medical Sciences, Tehran, IR Iran 2 Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran 3 Department of Chemistry, Tarbiat Modarres University, Tehran, IR Iran 4 Department of Esthetic and Restorative Dentistry, Dental School, Babol University of Medical Sciences, Babol, IR Iran

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