Gingival Pigmentation and Its Association with Skin Complexion and Periodontal Status Among Patients Attending a Tertiary Hospital in Nigeria: A Cross-Sectional Study. Nigerian Dental Journal, [S. l.], v. 34, n. 1, 2026. DOI: 10.61172/qz6py736. Disponível em: https://nigeriandentaljournal.ng/index.php/ndj/article/view/408. Acesso em: 18 mar. 2026.