Cirano, Fabiano Ribeiro, Giuseppe Alexandre Romito, and José Hildebrando Todescan. “Determination of Root Dentin and Cementum Micro Hardness”. Brazilian Journal of Oral Sciences 3, no. 8 (November 13, 2015): 420–424. Accessed November 30, 2023. https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641738.