J Korean Acad Oral Health.  2020 Dec;44(4):246-252. 10.11149/jkaoh.2020.44.4.246.

Inhibitory effect of the probiotic bacteria, Weissella cibaria CMU on halitosis: a randomized placebo-controlled study

• Kim DH
• Kang MS
• Yeu JE
• Lee MG
• Cho JW

• KMID: 2510261
• DOI: http://doi.org/10.11149/jkaoh.2020.44.4.246

Abstract

Objectives
Previous studies have suggested that the lactic acid bacterium, Weissella cibaria CMU has beneficial effects on halitosis, but its precise effects have not been evaluated in human subjects. We evaluated the efficacy and safety of W. cibaria CMU for reducing halitosis in adults (20-70 years old) whose exhibited volatile sulfur compound (VSC) concentrations exceeded 0.015 ng/mL and who scored ≥2 points in a halitosis sensory evaluation test.
Methods
A total of 60 participants were assigned to an experimental group (treated with W. cibaria CMU) and a control group (placebo). In total, 58 out of 60 participants (experimental group, 29; control group, 29) were ultimately included in gas chromatography (OralChroma) analyses of VSC concentrations and halitosis sensory evaluation tests.
Results
We found that the VSC concentration decreased by 0.030±0.062 ng/ml in the experimental group after 8 weeks (P=0.0138) and increased by 0.005±0.124 ng/ml in the control group (P=0.8198). However, the difference between groups was not statistically significant (P>0.05). In a sensory evaluation test, a significantly lower score was obtained for the experimental group than for the control group.
Conclusions
Overall, VSC concentrations and sensory evaluation scores were lower in the experimental group than in the control group, but only the latter was statistically significant. Thus, we conclude that W. cibaria CMU is involved in the reduction of halitosis.

Keyword

Halitosis; Probiotics; Weissella cibaria

Reference

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