Effect of zinc oxide-doped hydroxyapatite nanoparticles on the friction reduction and antibacterial properties of orthodontic ceramic brackets and stainless-steel wires. - Ikram, Saira; Liaqat, Saad; Feroz, Sandleen; Sharif, Faiza; Fawy, Khaled Fahmi; Ahmad, Naveed; Nishan, Umar; Alkhtani, Fahad; Muhammad, Nawshad (Journal of Materials Science: Materials in Medicine, 2025)