EFEKTIVITAS EKSTRAK DAUN BELUNTAS ( Pluchea indica (L.) LESS. )DALAM MENGHAMBAT PERTUMBUHAN BAKTERI Streptococcus mutans

CAHYANI,NUR ISMAH, J2A015026 (2019) EFEKTIVITAS EKSTRAK DAUN BELUNTAS ( Pluchea indica (L.) LESS. )DALAM MENGHAMBAT PERTUMBUHAN BAKTERI Streptococcus mutans. Sarjana / Sarjana Terapan (S1/D4) thesis, ["eprint_fieldopt_institution_Universitas Muhammadiyah Semarang" not defined].

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Abstract

Abstract Dental caries, or known as perforated teeth, are a harsh tissue disease caused by the Streptococcus mutans bacteria. One of the plants that has antibacterial activity on Streptococcus mutans bacteria and has been widely researched is the leaf beluntas. The Beluntas leaves (Plucheaindica L.) are herbal plants that have active compounds that are able to inhibit the growth of Streptococcus mutans bacteria. Research objectives: To know the effectiveness of leaf extract in inhibiting the growth of Streptococcus mutans bacteria. Method: The research is a true experimental research laboratoris with post test only group design using a Sumuran method, with a large sample 27 treatment that is divided into 3 groups of concentrations of leaf extract beluntas against bacteria Streptococcus mutans is 25%,50% and 75% which then results in a barrier zone diameter. The analysis of the data used is One Way Anova test followed by a Post Hoc test analysis of the Bonferroni test. Result: Beluntas leaf extract produces a barrier zone diameter with the average of each concentration of 25% = 6.43 ± 0.059, 50% = 7.50 ± 0.019 and 75% = 8.94 ± 0.291. A test result of One Way Anova and test Post Hoc test analysis of the Bonferroni test is obtained (P-value) = 0.000 or (p < 0.05). Conclusion: Extract of beluntasleaves(Plucheaindica L.)at concentrations of 25%,50% and 75% effective in inhibiting the growth of Streptococcus mutans bacteriaand included in the medium category. Key word: Dental caries, Streptococcus mutans, Beluntas leaf (Plucheaindica L.)

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