Question

Explain the pH change as the cause of tooth decay. How can tooth decay caused by pH change be prevented?

Answer 1

It is due to the bacterial activity on food particals remaining in the mouth and an acid is formed.The PH of the mouth falls below 5.5 and the tooth emamel dissolves resulting in cavities.

Answer 2

Acids produced by the bacteria cause tooth decay by providing optimal environment for bad bacteria.

Explanation:

After eating certain food and sugar the bacteria produce acids by degrading food which lower the pH of the mouth and creates acidic environment. This acidic environment is helpful for bad bacteria. Bad bacteria start decaying the enamel of the tooth.

Certain foods and tooth pastes are basic in nature so cleaning mouth with toothpaste thoroughly increases the pH of mouth back to neutral pH by removing excess acids.

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