To Evaluate and Compare the Effect of Commercially Available Model Hardening Agent on Surface Hardness and Surface Roughness of Refractory Investment Materials: An In-Vitro Study. Indian Journal of Public Health Research & Development, [S. l.], v. 11, n. 8, p. 11–18, 2020. DOI: 10.37506/ijphrd.v11i8.10889. Disponível em: https://medicopublication.com/index.php/ijphrd/article/view/10889. Acesso em: 6 jun. 2026.