Uji Daya Hambat Ekstrak Daun Salam (Syzygium polyanthum wight) Terhadap Pertumbuhan Bakteri Porphyromonas Gingivalis Secara In Vitro

Chronic periodontitis is the most common type of periodontitis. The main cause chronic bacterial colonization plaque. Porphyromonas gingivalis pathogen and has highest prevalence Bay leaf extract (Syzygium polyanthum wight) believed to have pharmacological effect that can be used as antibacterial. purpose this research was determine inhibitory bay on growth in vitro. method experimental laboratories with posttest only control group design. There were 30 samples divided into 6 groups, namely concentration 2.5%, 5%, 10%, 20%, 40% Dimethyl Sulfoxide (DMSO) a control. Inhibitory test using Kirby-Bauer paper disc Mueller Hinton medium agar. Inhibition zone created around measured sliding caliper. results analyzed One Way Anova Post Hoc LSD test. showed mean had largest inhibition 7,6 mm lowest formed by 2,5% 1,94 mm. there significant difference among (p<0,05). conclusion 2,5%, higher resulting greater zone.