EFFECTIVENESS OF ROBUSTA SEMENDO COFFEE EXTRACT IN THE TREATMENT OF CHRONIC PERIODONTITIS ON REDUCING THE COUNT OF PMN CELLS IN WISTAR RATS. IJDS [Internet]. 2024 Dec. 15 [cited 2026 Apr. 29];2(1):44-56. Available from: http://ijds-pdgipalembang.com/index.php/ijds/article/view/29