IBRAHEM, D. L. M. The association between a marker of oxidative stress in Saliva and severity of periodontal disease. Mustansiria Dental Journal, [S. l.], v. 4, n. 1, p. 56–60, 2018. DOI: 10.32828/mdj.v4i1.584. Disponível em: https://mdj.uomustansiriyah.edu.iq/index.php/mdj/article/view/584. Acesso em: 6 may. 2024.