충치
Frequency of sugar sweetened beverages results in dental caries, which are caused by Streptococcus bacteria. Dental caries is an infectious oral disease and is the breakdown of the teeth due to the bacteria in the mouth. It occurs when bacteria within the plaque metabolize the sugar, releasing various acids as waste compounds. As the acids are released, they form holes in the teeth which dissolve the enamel. The sugars, therefore provide a passageway for the activities of the oral bacteria, lowering salivary pH. The bacteria alone are not the sole cause of tooth decay, as it is the presence of these sugars that inhibit the production of acid.