GINGIVAL PIGMENTATION AND ITS ASSOCIATION WITH DENTAL CARIES AMONG STUDENTS IN DIYALA CITY, IRAQ. International Journal of Medical Science and Dental Health, [S. l.], v. 2, n. 01, p. 01–04, 2016. Disponível em: https://www.ijmsdh.org/index.php/ijmsdh/article/view/84.. Acesso em: 14 sep. 2025.