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Effect of Lactobacillus brevis CD2 containing lozenges and plaque pH and cariogenic bacteria in diabetic children: a randomised clinical trial

  • 2020-10-21
  • Clinical Oral Investigations 25(1)
    • S. Lai
    • P. Lingström
    • M. Cagetti
    • F. Cocco
    • G. Meloni
    • M. Arrica
    • G. Campus

Abstract

Objective: The short-term effect (60 days) of Lactobacillus brevis CD2 lozenges vs placebo on variables related to caries and gingivitis in type 1 diabetic children was evaluated.

Material and methods: Eight diabetics (4-14 years old) were assigned to two groups (n = 34 subjects each), probiotic lozenges and placebo. Stimulated saliva for microbiological analysis and plaque pH were assessed at baseline (t0), 30 days (t1), 60 days (t2) and in the follow-up period (90 days from baseline, t3). Gingival status was assessed at t0, t2 and t3. Two-way ANOVA assessed differences between groups.

Results: In the probiotic group, Streptococcus mutans bacterial density mean scores dropped from 3.11 ± 1.13 at baseline to 1.82 ± 0.72 (t2) and to 2.06 ± 0.56 (t3), while in the placebo group, the scores were 3.09 ± 0.8 (t0), 2.82 ± 0.47 (t2) and 3.11 ± 0.43 (t3) (p < 0.01). Lowest and maximum pH fall increased in the probiotic group, from 5.37 ± 0.41 at baseline to 5.49 ± 0.24 at t3 (p < 0.01) and from 1.20 ± 0.46 to 0.98 ± 0.29 (p = 0.02). Bleeding score decreased significantly in both groups, showing a statistically significant lower bleeding score at t2 in the probiotic group (25.6%, 95% CI 21.5-32.7 vs 29.5%, 95% CI 25.2-34.9, p = 0.02).

Conclusions: Lactobacillus brevis CD2 has shown to improve caries-related risk factors and gingival health in diabetic children.

Clinical relevance: Lactobacillus brevis CD2 might contribute to improved oral health in type 1 diabetic children.

Keywords: Caries; Children; Lactobacillus brevis CD2; Plaque pH; Probiotic; Salivary mutans streptococci.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus brevisReduced Gingival BleedingBeneficial
Moderate
Lactobacillus brevisReduced Streptococcus Mutans DensityBeneficial
Large
Lactobacillus brevis HA-112Increased Plaque pH LevelsBeneficial
Moderate
Lactobacillus brevis HA-112Reduced Gingival BleedingBeneficial
Moderate
Lactobacillus brevis HA-112Reduced Streptococcus Mutans DensityBeneficial
Large
Lactobacillus brevis MAK11L82BImproved Plaque pH StabilityBeneficial
Moderate
Lactobacillus brevis MAK11L82BReduced Gingival BleedingBeneficial
Moderate
Lactobacillus brevis MAK11L82BReduced Streptococcus Mutans LevelsBeneficial
Large

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