Evidence supporting the use of: Vitamin C (sodium ascorbate)
For the body system: Teeth

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Synopsis

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

Vitamin C (as sodium ascorbate or ascorbic acid) has scientific support for its role in maintaining oral and dental health, though its direct effect on teeth specifically is moderate rather than robust. Vitamin C is essential for collagen synthesis, which is a major component of the connective tissue in gums (gingiva) and the periodontal ligament that supports teeth. Deficiency in vitamin C is well known to cause scurvy, a disease characterized by bleeding gums, tooth mobility, and eventual tooth loss due to the breakdown of connective tissue and capillaries in the mouth. Clinical studies and case reports have shown that maintaining adequate vitamin C levels supports gum health, reduces bleeding, and may help prevent or ameliorate gingivitis and periodontitis, both of which are risk factors for tooth loss. However, there is limited direct evidence that vitamin C prevents dental caries (tooth decay) or strengthens tooth enamel. Most dental benefits relate to the health of the supporting structures of the teeth rather than the teeth themselves. Sodium ascorbate, a buffered form of vitamin C, may be preferred by some to reduce acidity and minimize potential enamel erosion associated with acidic forms of vitamin C. In summary, vitamin C is scientifically validated for supporting gum and periodontal health, which indirectly supports the teeth, but it is not a primary agent for strengthening teeth or preventing cavities.

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