Uji efektivitas antibakteri daun Biduri (Calotropis gigantea) terhadap pertumbuhan Streptococcus mutans: studi eksperimental laboratoris
Abstract
Antibacterial effectiveness test of biduri leaf (Calotropis gigantea) against Streptococcus mutans: experimental laboratory study
Introduction: Caries is a disease that affects the hard tissue of the teeth, caused by acid deposits produced by plaque bacteria that accumulate on the tooth surface. One of the plaque bacteria is Streptococcus mutans. Chlorhexidine gluconate 0.2% mouthwash has been shown to inhibit S. mutans. However, prolonged use of Chlorhexidine gluconate 0.2% mouthwash can cause side effects. To avoid these side effects, natural ingredients like biduri plant that have antibacterial effects are needed. This research aims to analyze the inhibitory effects of biduri (Calotropis gigantea) leaf extract on the growth of S. mutans. Methods: This research is experimental laboratory study. Six treatment groups were used, four groups treated with biduri leaf extract at concentrations of 15%, 20%, 25%, 30%; the K(-) using distilled water,; and K(+) using Chlorhexidine gluconate 0.2%. The treatment and control group were exposed to S. mutans to evaluate its antibacterial effect and assessed using the UV-Vis spectrophotometric and total plate count method. Results: In the research conducted, each concentration showed varying inhibition rates. The inhibition rates observed were as follows: 0% for the K(-), 45,78% for the 15% group, 34,93% for the 20% group, 76,5% for the 25% group, 64,45% for the 30% group, and 89,45% for the K(+). In bacterial colony count, the greatest bacterial inhibition was observed at concentration of 25%. Statistical analysis was performed on the obtained data. A Paired T-Test demonstrated a significant difference between the data before and after incubation. Further analysis using the Kruskal Wallis and Mann Whitney tests revealed no significant difference in inhibition rates between 15% and 25% concentrations, or between 25% and 30%. Conclusion: Biduri leaf extract effectively inhibits the growth of S. mutans.
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DOI: https://doi.org/10.24198/jkg.v36i3.56148
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