Tooth decay can be cured by a toothpaste by a reaction called as :

Redox reaction

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Condensation

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Neutralization

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None of above

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Solution

The correct option is D Neutralization
When food particles decay in our teeth, the level of acidity in our mouth rises. This leads to tooth decay. Toothpaste are basic in nature. So, this neutralizes the acids and helps prevent tooth decay.

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To prevent tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is-

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