Bacteria absorb xylitol as they would sugar or starch. Unlike sugar or starch, xylitol does not provide bacteria with an energy source. In fact, xylitol starves harmful bacteria and also prevents them from processing other sugars, which stops their acid production.
Xylitol stimulates a flow of saliva from special glands around the mouth. Teeth begin to remineralize and become smoother. Bacteria are less able to stick to this shinier surface and less plaque forms on teeth. This is good news for people who have endured a lifetime of dental problems and weak and sensitive teeth. Six months of consuming xylitol regularly will clean your mouth of harmful bacteria and help strengthen teeth, reduce sensitivity and helps heal early cavities.