Question

1. How do tooth pastes help in preventing tooth decay?

Answer 1

Explanation:

When tooth enamel is weakened by acid, fluoride promotes a chemical reaction that replaces minerals, such as calcium and phosphate, to strengthen the enamel. This also makes it more resistant to future acid attacks.

in this way it prevents tooth decay.

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Answer 2

Answer:

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Explanation:

After eating the food the p. h of our mouth becomes acidic which can cause decay if not neutralized and as toothpaste is a basic substance it will neutralize that acidic medium and prevent tooth decay.

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