Assessment of the influence of calcination time and temperature on the com-pressive strength and crystallinity of hydroxyapatite obtained from avian egg-shell. SCIÉNDO INGENIUM, [S. l.], v. 21, n. 1, p. 11–18, 2025. DOI: 10.17268/rev.cyt.2025.01.01. Disponível em: https://revistas.unitru.edu.pe/index.php/PGM/article/view/6289. Acesso em: 18 jul. 2026.