ph ka pura nam likhkr daynik jiwan me mahatwa btay karn btaiye ki muh ka ph 5.5se km hone pr dant kharab hona kyo suru ho jate h
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A pH of 7 is neutral – the pH of pure water is very close to 7. At a pH of 5.5 the teeth begin to demineralize, putting them at risk for cavities. A healthy mouth is in a neutral pH range.
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