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Question

Explain what happens when food particles remain in mouth after eating. How can we prevent the effect?


Solution

Bacteria present in the mouth produce acids by degradation of sugar and food particles remaining in the mouth after eating. This acid can lower the pH in the mouth. Tooth decay starts when the pH of the mouth is lower than 5.5. Tooth enamel, made up of calcium phosphate is the hardest substance in the body. It does not dissolve in water, but is corroded when the pH in the mouth is below 5.5.

The best way to prevent this is to clean the mouth after eating food. Using toothpastes, which are generally basic, for cleaning the teeth can neutralize the excess acid and prevent tooth decay.


Accountancy

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