Q. 34.3( 16 Votes )

How toothpaste prevents tooth decay?

Answer :

Tooth decay occurs when the pH of the mouth falls less than 5.5. The bacteria present in the mouth degrade the food remaining in the mouth after eating and produce acids. These acids lower the pH of the mouth, causing tooth decay.


Toothpastes are basic in nature, and therefore cleaning the teeth with toothpastes would result in neutralization of excess acids. Thus toothpaste prevents tooth decay.


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