| Completed | N/A | 18 | RoW | Zinc oxide nanoparticle coated orthodontic molar tubes (experimental), orthodontic molar tubes (control) | University of Baghdad | Evaluations, Diagnostic Self, Antimicrobial, Orthodontic Appliance Complication, Bacterial Overgrowth, Dental White Spot, Plaque Induced Gingivitis, Plaque, Dental | 09/23 | 10/23 | | |