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Why does the medium become acidic in mouth? What is the ill effect of this acidic medium? How can this be prevented?
When the pH in the mouth falls below 5.5, tooth decay starts. Bacteria present in the mouth produce acid by the degradation of sugar and food particles which remain in the mouth after eating.
The ill effect of Acidic medium: The acid produced in the mouth attack the enamel and corrode it thereby, creating tooth decay.
It can be prevented by using brushing our teeth regularly. Toothpaste is basic in nature and neutralizes the effect of acid produced by the bacteria.
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