F. Ghani, M. Kikuchi, and M. Watanabe, “The effect of mouth remaining open or close on the depth of mandibular alveolo-buccal vestibule during impression recording”, JPPA, vol. 1, no. 1, pp. 12–20, Mar. 2013, Accessed: Jul. 22, 2026. [Online]. Available: https://www.jppa.pk/jppa/article/view/6