Q. 54.3( 82 Votes )

Why are toothpast

Answer :

The bacteria present in our mouth is not washed away by the saliva. It reacts with the sugar present in the food material to form acid which remains adhered to the teeth. Therefore, to remove the acidic film on the teeth, most of the toothpastes are basic in nature. These basic ingredients like sodium fluoride or sodium bicarbonate present in the toothpaste react with acidic films and hence helps to clean the mouth effectively.

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