Erythritol is a sugar alcohol that has been increasingly studied for its effects on dental health. Scientific validation exists for its use in supporting the teeth and oral cavity. Unlike sucrose and many other fermentable sugars, erythritol is not metabolized by oral bacteria such as Streptococcus mutans, which are responsible for acid production and dental caries. Several randomized controlled trials, as well as in vitro studies, have shown that erythritol can reduce the formation of dental plaque, lower the counts of cariogenic bacteria, and decrease the incidence of dental cavities compared to both placebo and other sugar alcohols like xylitol.

For example, a 2016 clinical trial published in Caries Research found that children who consumed erythritol candies had significantly fewer dental caries and lower levels of dental plaque than those given xylitol or sorbitol candies. Mechanistically, erythritol appears to inhibit bacterial adherence to tooth surfaces and suppresses acid production, both of which contribute to a reduced risk of tooth decay.

While long-term studies are still limited, the current body of research supports the use of erythritol as a non-cariogenic sweetener that may have additional protective effects on dental health. As such, its use to support the teeth is justified based on scientific evidence.