“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, vol. 20, no. J1, pp. 5–12, Jan. 2020, Accessed: Jan. 31, 2026. [Online]. Available: https://medicalresearchjournal.org/index.php/GJMR/article/view/1975