Question

Tooth pastes are always manfactured by mixing with mild base. Why?
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Answer 1

Answer:

Toothpastes are usually weakly basic in nature. ... So, the two ingredients giving toothpaste a basic nature are: The sequestering agent tetrasodium pyrophosphate (TSPP) which removes calcium and magnesium from the saliva, so they can't deposit on teeth as insoluble deposits called tartar, (calcified plaque).

Answer 2

Explanation:

The pH in our mouth is 5.5 which is slightly acidic. If the pH in our mouth decreases it results in tooth decay due to formation of certain acids. Toothpaste is basic in nature which neutralizes the acid and protects from tooth decay.