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Why did tooth decay when pH …

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Why did tooth decay when pH value below 5.5 ?

    • Posted by Pk Toon 4 years, 4 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Dipika Mohan 4 years, 4 months ago

    Tooth decay starts when oh is 5.5 because of acid present in it. Bacteria produce acids by degradation of sugar and food particles remaining in the mouth. Therefore calcium phosphate does not dissolve in water but is corroded when the pH of mouth is below 5.5.

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