PINEDO SALDAÑA, A. E.; GARCÍA RUPAYA, C. R. Comparison of Surface Microhardness of Portland Cement Associated with Niobium Oxide and Zirconium Nanoparticles with the Mineral Aggregate Trioxide. Odovtos - International Journal of Dental Sciences, [S. l.], v. 27, n. 1, p. 64–72, 2024. DOI: 10.15517/ijds.2024.61616. Disponível em: https://revistas.ucr.ac.cr/index.php/Odontos/article/view/61616. Acesso em: 28 mar. 2025.