Protective Effect of Different Extracts of Celtis Australis and Syzygium Aromaticum on Tetrahymena for the Cytotoxicity of Nickel-Titanium-Based Orthodontic Wires. GJMR. 2021;21(J2):5-16. Accessed February 4, 2026. https://testing.medicalresearchjournal.org/index.php/GJMR/article/view/2511