Question

4. What causes tooth decay?​

Answer 1

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Bacteria, acid, food and saliva mix to form plaque. This sticky substance coats the teeth. Without proper brushing and flossing, acids in plaque dissolve tooth enamel, creating cavities, or holes.

Answer 2

Tooth decay is described as the softening of tooth enamel that results in structural damage to the tooth as a result of acids produced by plaque bacteria as sugar decomposes in the mouth.

Explanation: When this issue is left untreated for a long period, mineral loss from the enamel occurs, causing cavities or holes in the tooth, which can eventually harm the entire tooth. Nerves in the dentine of the teeth can be exposed in some circumstances, causing pain while eating or drinking. Enamel and dentine both deteriorate as a result of tooth decay. Acids are generated when bacteria break down carbohydrates, softening or demineralizing the enamel. Bacteria in the mouth produce acids as a result of the oxidation of sugar and food particles in the mouth after eating.