Question

State condition when tooth enamel starts corroding why do doctors suggest the use of tooth paste to prevent tooth decay

Answer 1

Answer:

Toothpaste is basic in nature and it makes the pH of mouth basic. So as cavities form when enamel gets corroded with repeated action of acids formed by bacteria that need pH of the mouth to be acidic, and releases acids from the food sticking to teeth, toothpaste helps to clean the food also, preventing cavities.

The condition when enamel starts corroding is called as dental caries.

Explanation:

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Answer 2

Answer:

Sweet tooth leads to tooth decay. Which is caused by the action of Bacteria on food particles  remaining in the mouth and acid is formed. The pH of the mouth falls below 5.5 and the  tooth enamel dissolves resulting in cavities Toothpastes are generally basic, they neutralise  the excess acid produced in the mouth and prevent tooth decay.