Comparative Evaluation of the Inhibitory Effect of Lactobacillus rhamnosus on Halitosis-Causing Bacteria: An Invitro Microbiological Study

Abstract

Aim: To determine the effectiveness of Lactobacillus rhamnosus in inhibiting halitosis-causing bacteria relative to other possible inhibitors, such as mouthwashes. Materials and Methods: This in vitro study was done using a diffusion test with three groups with 11 samples in each group: group A, Porphyromonas gingivalis ; group B, Tannerella forsythia ; and group C, Prevotella intermedia . At 24, 48, and 72 hours, the inhibitory effect of L. rhamnosus was tested. Results: A statistically significant difference was seen for halo formation in group A, where all 11 samples showed an inhibitory effect after 72 hours. After 48 hours, seven of the 11 samples in group B and nine of the 11 samples in group C showed inhibitory effects. Conclusion: The study found that L. rhamnosus had an inhibitory effect on halitosis-causing bacteria like P. gingivalis after 72 hours, which was statistically significant. The same was true for T. forsythia and P. intermedia after 48 hours. This means that L. rhamnosus has an inhibitory effect on halitosis-causing bacteria like P. gingivalis .

Role of probiotics in managing various human diseases, from oral pathology to cancer and gastrointestinal diseases

“…The study revealed that for individuals with halitosis, the eight-week intake of this oral probiotic could serve as a beneficial intervention to reduce bad breath and enhance oral health-related quality of life (Lee et al, 2020). Patil (Patil et al, 2023). In another recent randomized, double-blinded study, Han and colleagues aimed to explore the effects of tablets containing W. cibaria on halitosis.…”