The College of Dentistry at the University of Baghdad organized a scientific symposium entitled “The Antimicrobial Effect of Zinc Oxide Nanoparticles as a Coating Material for Fixed Orthodontic Retainers.” The lecture was delivered by Professor Dr. Shahbaa Abdul‑Ghafour, with the attendance of several faculty members and postgraduate students.
The symposium aimed to explore the effectiveness of zinc oxide nanoparticles (ZnO NPs) as a coating material for fixed orthodontic retainers in reducing microbial activity, limiting plaque accumulation, and maintaining oral health during the retention phase.
The symposium addressed several key themes, including:
- Zinc oxide nanoparticles: concept and properties.
- Mechanism of antimicrobial action of ZnO nanoparticles.
- Application of nanocoating in fixed orthodontic retainers.
- Impact of ZnO nanoparticles on plaque control and oral tissue health.
- Clinical aspects and biosafety considerations.
The symposium recommended the following:
- Adopting zinc oxide nanoparticles as a coating material for fixed retainers to reduce microbial contamination.
- Conducting further clinical studies to evaluate long‑term effectiveness.
- Integrating modern nanotechnologies into daily orthodontic practice.
- Raising orthodontists’ awareness of the importance of antimicrobial materials in clinical applications.
