Abstract
The effect of Stevia extracts on in vitro Streptococcus mutans biofilm formation and in vivo plaque pH was evaluated in this paper. Three 10% solutions containing stevioside, rebaudioside A or sucrose were prepared. MTT assay was used to evaluate microbiological counts in vitro. Twenty volunteers rinsed for 1 min with each solutions, and plaque pH was measured at 7 time points after each rinse. Higher in vitro S. mutans biofilm formation was observed in sucrose solution (p < 0.01). After 5, 10, 15 and 30 min, the sucrose in vivo rinse produced a statistically significantly lower pH value compared to the Stevia extracts (F = 99.45, p < 0.01).Stevia extracts can be considered nonacidogenic.
Publication types
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Comparative Study
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Randomized Controlled Trial
MeSH terms
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Adult
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Bacterial Load / drug effects
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Bacteriological Techniques
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Biofilms / drug effects*
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Coloring Agents
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Dental Caries / microbiology*
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Dental Plaque / physiopathology*
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Diterpenes, Kaurane / pharmacology
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Female
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Follow-Up Studies
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Glucosides / pharmacology
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Humans
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Hydrogen-Ion Concentration
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Male
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Mouthwashes / pharmacology
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Pilot Projects
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Plant Extracts / pharmacology*
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Spectrophotometry / methods
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Stevia*
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Streptococcus mutans / drug effects*
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Streptococcus mutans / growth & development
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Sucrose / pharmacology
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Sweetening Agents / pharmacology
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Tetrazolium Salts
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Thiazoles
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Young Adult
Substances
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Coloring Agents
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Diterpenes, Kaurane
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Glucosides
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Mouthwashes
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Plant Extracts
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Sweetening Agents
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Tetrazolium Salts
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Thiazoles
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stevioside
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Sucrose
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rebaudioside A
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thiazolyl blue