ABSTRACT
Objective: This study aimed to determine the difference in antibacterial efficacy between maceration and reflux extracts of pepper elder against Porphyromonas gingivalis. Method: This experimental laboratory study used a Post-Test Control Group Design. Testing was done using the disk diffusion method on 10 treatment groups: maceration and reflux methods with concentrations of 25%, 50%, 75%, 100%, negative control with distilled water, and positive control with 0.2% chlorhexidine. Each treatment group was repeated three times on blood agar media incubated for 48 hours. Measurements were made using calipers on the clear zones formed around the disk paper. Result: The Kruskal-Wallis test showed a p-value of 0.001, indicating significant differences among the groups. The Mann-Whitney test for two-group comparisons revealed significant values, with the highest inhibitory effect observed in the 100% maceration extract. Conclussion: Significant differences in the antibacterial efficacy of maceration and reflux extracts against the growth of Porphyromonas gingivalis.
