Zia, A. U., Mahmood, A. and Shahnawaz, A. (2012) “Effect of inter-premolar width on buccal corridor area show during posed smile”, Pakistan Orthodontic Journal, 4(1), pp. 4–9. Available at: https://www.poj.org.pk/index.php/poj/article/view/55 (Accessed: 15 August 2026).