Niknam, Ozra, Shole Shahi, Jale Narimisaei, and Mohabbat Mousaei Emami. “Perception of Altered Smile Esthetics by Orthodontists, General Dentists, and Laypeople”. Galen Medical Journal (November 8, 2025): e3947. Accessed November 24, 2025. https://journals.salviapub.com/index.php/gmj/article/view/3947.