Evidence supporting the use of: Polyphenols (various)
For the body system: Teeth

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Polyphenols, a diverse group of plant-derived compounds found in foods like tea, berries, cocoa, and some herbs, have gained scientific attention for their potential benefits to oral health and the teeth. Several in vitro and in vivo studies suggest that polyphenols possess antimicrobial properties capable of inhibiting the growth and adhesion of oral pathogens such as Streptococcus mutans, a primary contributor to dental caries. Additionally, polyphenols may reduce biofilm formation (plaque) and inhibit glucosyltransferase activity, which is crucial for plaque production. Green tea catechins, a subclass of polyphenols, are especially well-studied, with research indicating they can decrease bacterial acid production and protect against enamel demineralization.

Clinical studies, though limited, have found that polyphenol-rich mouthwashes or chewing gums can reduce plaque accumulation and gingival inflammation. However, while mechanistic and early clinical data are promising, large-scale, long-term human trials are still needed to determine the full efficacy and safety profile of polyphenols for dental health. Thus, while there is scientific validation for the use of polyphenols in supporting the teeth, the overall evidence strength is moderate, and polyphenols are best considered as adjuncts rather than replacements for established dental hygiene practices.

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