Question

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Here's your question: -
Change in PH causes tooth decay?
Explain​

Answer 1

Explanation:

An Unhealthy pH Level

Tooth decay can occur when the pH level in the mouth is 5.5. For reference, the neutral level is 7.0. When we consume acidic foods and drinks, the pH within the mouth decreases and can cause the pH in the dental plaque to fall rapidly below 5.0.

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Answer 2

Certain foods increase the acidity of the mouth – drop the pH level. ... In that time, the lower pH of the mouth creates an optimal environment for bad bacteria, which eventually causes tooth decay.

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