White tea (Camellia sinensis) has been studied for its potential benefits to oral health, including the gums. Scientific research indicates that white tea contains polyphenols, particularly catechins, as well as fluoride, which may contribute to maintaining gum health. Studies have found that the polyphenols in white tea possess antibacterial properties that can inhibit the growth of oral bacteria responsible for dental plaque, gingivitis, and periodontal disease. For example, a study published in the "Journal of Dentistry" (2010) demonstrated that white tea extracts could inhibit the growth of Streptococcus mutans and other bacteria linked to gum disease.

Additionally, white tea is a natural source of fluoride, which is known to strengthen teeth and may indirectly support gum health by preventing tooth decay. There is also evidence that the antioxidants in white tea can help reduce inflammation, which is a key factor in gum disease. However, while laboratory and some clinical studies support these effects, the evidence is not as robust or extensive as that for other dental interventions, such as the use of chlorhexidine or mechanical cleaning.

In summary, scientific studies provide a moderate level of evidence that white tea can support gum health, primarily due to its antibacterial and anti-inflammatory properties. However, more high-quality clinical research is needed to fully establish its effectiveness in routine oral care.