Effect of 0.12% Chlorhexidine Gel and Tooth Brushing on Porphyromonas Gingivalis Levels in Subgingival Plaque and Matrix Metalloproteinase-8 (MMP-8) Levels in Gingival Crevicular Fluid of Children and Adolescents with Down Syndrome. GJMR. 2020;20(J1):5-12. Accessed January 31, 2026. https://medicalresearchjournal.org/index.php/GJMR/article/view/1975