Morou-Bermúdez, Evangelia, Ronald J. Billings, Robert A. Burne, and Augusto Elías-Boneta. “Caries Risk Pyramid: A Practical Biological Approach to Caries Management by Risk Assessment”. Puerto Rico Health Sciences Journal 30, no. 4 (November 18, 2011). Accessed January 10, 2026. https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/628.