Final answer:
Dental caries are caused by bacteria fermenting sugar in the mouth, not solely by eating added-sugar foods or eating too frequently. Good oral hygiene, reduced sugar intake, and fluoride use are key in preventing cavities.
Step-by-step explanation:
Dental caries, commonly known as cavities, are caused by the fermentation of sugars in the mouth by bacteria, particularly Streptococcus mutans. When sugars from food, especially sucrose, are consumed, they are metabolized by these oral bacteria, resulting in the production of acids. These acids can erode the tooth enamel and lead to the development of cavities. The process is not limited to just added-sugar foods or eating too frequently, but these factors can increase the risk. Regular dental hygiene, including professional cleanings, can aid in preventing dental caries by removing the buildup of tartar and dental plaque. Reducing the intake of sugary foods and drinks, and using products containing fluoride can also help strengthen tooth enamel and reduce the occurrence of cavities