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Bovine milk fermented with Lactobacillus rhamnosus L8020 decreases the oral carriage of mutans streptococci and the burden of periodontal pathogens.

  • 2011-03-21
  • Journal of Investigative and Clinical Dentistry 2(3)
    • H. Nikawa
    • Yuta Tomiyama
    • Minako Hiramatsu
    • Kaori Yushita
    • Yuko Takamoto
    • Hitomi Ishi
    • Sumiyo Mimura
    • Aya Hiyama
    • H. Sasahara
    • Kazuko Kawahara
    • S. Makihira
    • T. Satoda
    • T. Takemoto
    • H. Murata
    • Y. Mine
    • T. Taji

Abstract

Aim: The aim of this study was to find the oral isolate of lactobacilli, which has the potential to inhibit either periodontal, cariogenic, or fungal pathogens in vitro, and to examine the effects of bovine milk fermented with the isolate on the oral carriage of cariogenic and periodontal pathogens.

Methods: The inhibitory effects of the supernatant of Man-Rogosa-Sharpe broth, in which each of 42 oral isolates of lactobacilli grown, was examined. One isolate, Lactobacillus rhamnosus L8020, that showed the potential to inhibit either periodontal, cariogenic, or fungal pathogens in vitro, was used to examine the effects of fermented milk on the oral carriage of cariogenic and periodontal pathogens, which was examined by a placebo-controlled and cohort trial using 50 participants.

Results: Edible yogurt containing Lactobacillus rhamnosus L8020 significantly reduced the oral carriage of mutans streptococci (P < 0.01) and four periodontal pathogens examined: Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia, and Fusobacterium spp. (P < 0.01), but the phenomenon were not observed with the placebo yogurt (P > 0.05).

Conclusion: These results suggest that yogurt with Lactobacillus rhamnosus L8020 could reduce the risk of dental caries and periodontal disease.

Keywords: Lactobacillus rhamnosus; dental caries; mutans streptococci; periodontal disease yogurt.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus rhamnosus HA-11Reduced Oral Carriage of Cariogenic PathogensBeneficial
Large
Lactobacillus rhamnosus HA-500Reduced Dental CariesBeneficial
Moderate
Lactobacillus rhamnosus HA-500Reduced Oral Carriage of Mutans StreptococciBeneficial
Large
Lactobacillus rhamnosus HA-500Reduced Periodontal Pathogen BurdenBeneficial
Large
Lactobacillus rhamnosus HA-500Reduced Risk of Periodontal DiseaseBeneficial
Moderate
Lactobacillus rhamnosus VPro 11Reduced Oral Carriage of Periodontal PathogensBeneficial
Large
Lactobacillus rhamnosus VPro 11Reduced Salivary Levels of Mutans StreptococciBeneficial
Large

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