Evidence supporting the use of: Clay
For the body system: Teeth

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Clay, particularly bentonite and kaolin clays, has a long history of traditional use for oral health, especially in folk and alternative medicine practices. Traditionally, clay has been used as a natural tooth-cleaning agent due to its mild abrasiveness and ability to bind to impurities. People have used clay powders as toothpaste alternatives, believing that the minerals in clay can help polish teeth and absorb toxins or bacteria from the mouth. However, scientific studies on the effectiveness of clay for dental health are limited. Most evidence supporting its use is anecdotal or based on its physical properties, such as its mild abrasiveness, which may help remove plaque mechanically, or its adsorptive capacity, which could theoretically bind bacteria or toxins.

There is little robust clinical research validating the safety or efficacy of clay as a dental health product. Concerns exist about the potential for heavy metal contamination in some clays and the possible abrasion of tooth enamel with frequent use. Modern dental science favors fluoride-containing toothpaste, which is well-supported by evidence for preventing cavities and strengthening enamel. In conclusion, the use of clay for oral health is primarily justified by tradition, with limited scientific evidence to support its effectiveness or safety.

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