A report published in the Journal of Dental Research, by Ritter, et al., compared the effectiveness of xylitol vs placebo lozenges in the prevention of dental decay in "active-decay" adults. 620 patients were followed for three years. Participants using the xylitol lozenges had 40% fewer decay lesions on root surfaces than those using the placebo.
J Dent Res, 2013 (Epub)
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