Question

Compound P forms enamel of teeth. It is the hardest substance of the body. It does not dissolve in water but it is corroded when pH in the mouth is below 5.5. How does toothpaste prevent dental decay?​

Answer 1

Explanation:

It doesn't dissolve in water but gets corroded when the pH is lowered below 5.5. ( ... What should we do to prevent tooth decay? ... Due to the production of acid, the pH in the mouth falls to 5.5.

Answer 2

Answer:

P = Ca3 (PO4)2. Bacteria present in the mouth produce acids by degradation of

sugar and food particles remaining in the mouth after eating. Using toothpastes, which

are generally basic, for cleaning the teeth can neutralize the excess acid and prevent

tooth decay.

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