Bacteria will react with food stains and tooth surface. Born as acid destroys enamel, leading to disease, tooth decay, especially if they leave the mouth is often acid for a long time.
Bacteria reacts with the surface of the tooth and the acid destroys tooth enamel. Lead to dental caries Especially if the mouth is acidic it for a long time.
The bacteria will react with the stain food and enamel surface acidic, destroy the enamel, leads to caries. Especially if you let your mouth acidity often, for a long time.