What is Xylitol?

Xylitol is a natural sweetener whose regular use is an evidence-based method for preventing dental caries. The caries-preventive effect of xylitol is primarily linked to its action against the bacterium Streptococcus mutans, which is a key contributor to tooth decay.

Xylitol occurs naturally in both fruits and plants and for commercial use it is mainly synthesized from corn. It is widely used in both the food and cosmetics industries, and is especially common in a variety of oral care products.

The effect of xylitol on oral microorganisms

It has been scientifically proven that xylitol inhibits the metabolism of S. mutans bacteria, suppresses the growth of all cariogenic strains and reduces their levels in the oral microflora.

The use of xylitol with food

Consuming xylitol during and after meals provides oral bacteria with activity but effectively leaves them “starving,” as they are unable to metabolize it. In addition, xylitol increases the concentration of amino acids in dental plaque and saliva, which helps neutralize the acids produced by bacteria.

Furthermore, xylitol participates in the natural remineralization process of tooth enamel that occurs during meals by forming complexes with calcium ions.

The supportive role of xylitol in oral hygiene

An essential part of oral hygiene is the removal of dental plaque from teeth. By reducing bacterial levels, xylitol also decreases plaque formation and thereby supports overall oral hygiene.

Xylitol does not replace oral hygiene!

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References:

Lee YE, Choi YH, Jeong SH, Kim HS, Lee SH, Song KB (2009). Morphological changes in Streptococcus mutans after chewing gum containing xylitol for twelve months. Curr Microbiol 58:332-337
Kakuta H, Iwami Y, Mayanagi H, Takahashi N (2003). Xylitol inhibition of acid production and growth of mutans Streptococci in the presence of various dietary sugars under strictly anaerobic conditions. Caries Res 37:404-409.
Mäkinen KK (1985). New biochemical aspects of sweeteners. Int Dent J 35:23-35.
Mäkinen KK (2010). Sugar alcohols, caries incidence, and remineralization of caries lesions: a literature review. Int J Dent 2010:981072