Cabello, Miguel, and Sergio Alvarado. “Relationship Between the Shape of the Upper Central Incisors and the Facial Contour in Dental Students. Lima. Peru.”. Journal of Oral Research 4, no. 3 (June 15, 2015): 189-196. Accessed April 14, 2026. https://www.joralres.com/index.php/JOralRes/article/view/joralres.2015.038.