Targeted Antimicrobial Treatment to Re-establish a Healthy Microbial Flora for Long-term Protection

Target antimicrobial treatment to re-establish a healthy microbial flora for long-term protection

Abstract: Streptococcus mutans has been implicated as the major acid producing (cariogenic) bacterium. Dietary sugars and other factors may cause an imbalance of oral microflora that enables S. mutans to become dominant in the multi-species biofilms on the tooth surface, which could lead to dental caries. The application of broad-spectrum antimicrobials often results in re-colonization and re-dominance of S. mutans within oral flora, while in contrast, therapies capable of selective elimination of S. mutans from oral microbial communities may help to re-establish the normal flora and provide long-term protection. C16G2, a novel synthetic antimicrobial peptide with specificity for S. mutans, was found to have robust killing efficacy and selectivity for S. mutans in vitro. A subsequent pilot human study found that a single application of C16G2 in the oral cavity (formulated in a mouthrinse vehicle) was associated with a reduction in plaque and salivary S. mutans, lactic acid production, and enamel demineralization during the entire 4-day testing period. C16G2 is now being developed as a new anticaries drug

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