Rosli, S. F. ., Z. . Berahim, N. S. . Nordin, and H. Taib. “Periodontitis Prevalence Based on the Current Classification System Among Patients Attending Dental Clinic Hospital Pakar Universiti Sains Malaysia”. IIUM Journal of Orofacial and Health Sciences, vol. 7, no. 2, July 2026, pp. 120-3, doi:10.31436/ijohs.v7i2.445.