Dentinal tubules obliteration using a toothpaste with nano-hydroxyapatite obtained from chicken eggshell - Huamán-Mujica, Karina; Castañeda-Vía, José; Bermúdez García, Vanessa; Dominguez, John; Landauro, Carlos; Quispe-Marcatoma, Justiniano; Tay Chu Jon, Lidia (Journal of Stomatology, 2022)