SALSABILA MAGHFIRANI WIMARDIAN, 021511133020 (2019) DAYA HAMBAT EKSTRAK DAUN SEREH (CYMBOPOGON CITRATUS) TERHADAP BAKTERI PLAK SUPRAGINGIVA. Skripsi thesis, Universitas Airlangga.

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Abstract

Periodontal disease is multi-factor, caused by the interaction of microbes wich was accumulate into biofilms called plaques and increase the host's inflammatory immune response. If plaque removal is not adequate, it causes gingivitis, and if it continues than becomes a chronic infection and lead attachment loss. The bacteria that colonize supragingival plaque can be inhibited with something that contains antibacterial, one them is lemongrass (Cymbopogon citratus). Lemongrass contains, among other things, alkaloids, flavonoids, tannins, and saponins which can be used as antibacterials. Purpose: The aim of this study was determine the inhibitory power of citronella leaf extract against supragingival plaque bacterial activity. Methods: This study used extracts diluted with serial dilution method on BHIB media with a concentration of 100%; 50%; 25%; 12.5%; 6.25%; 3.125%; 1.56%; 0.78% and bacteria are planted on MHA media. Then a bacterial colony was calculated. Results: There were significant differences in the growth of supragingival plaque bacterial colonies in all concentrations. Conclusion: lemongrass extract (Cymbopogon citratus) can inhibit the growth of supragingival plaque bacterial colonies at concentration ranging from 1.56%

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