Evidence supporting the use of: Organic acid (unspecified)
For the body system: Teeth

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Synopsis

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

Organic acids, particularly those such as citric acid, malic acid, and lactic acid, are naturally present in various foods and are sometimes used in dental health products. The scientific basis for their use in supporting the teeth body system primarily relates to their role in oral pH modulation and antimicrobial properties. Certain organic acids, like lactic acid produced by probiotic bacteria, can inhibit the growth of pathogenic oral bacteria, potentially reducing dental caries risk. Some studies have shown that acidic environments can inhibit the growth of Streptococcus mutans, a major contributor to tooth decay, although excessive acid exposure can also erode dental enamel. Additionally, organic acids are used in dental hygiene products as part of formulations intended to disrupt biofilms or enhance remineralization when used in controlled concentrations. However, the evidence is mixed. While there is support for the antimicrobial action and potential pH-adjusting benefits, overexposure to organic acids (especially from dietary sources like soft drinks and fruit juices) is well-documented to contribute to tooth enamel erosion and dental caries. Thus, scientific validation exists primarily for specific uses (such as certain mouth rinses or probiotic applications), but not for routine dietary supplementation of organic acids for dental health. The balance between beneficial antimicrobial effects and the risk of enamel demineralization limits the overall strength of recommendation, resulting in a moderate evidence rating.

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