How pH can cause tooth decay ?
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One way tooth decay can occur is when the pH level in the mouth begins to fall below 5.5. The neutral pH level is 7.0, so this will drop when acidic foods and drinks are consumed. When the mouth is exposed to long periods of low pH, it allows cavity causing bacteria to grow and develop.
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pH is the rate of which liquid released is acidic or basic
Explanation:
The microorganisms living on the tooth and prevent the Saliva to reach the tooth. They release harmful acid whose pH is less than 7(means acidic) which softens the enamel and causes tooth decay.
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