पीएच का पूरा नाम लिखकर दैनिक जीवन में महत्व बताइए कारण बताइए कि मुंह का पीएच 5.5 से कम होने पर दांत खराब होना क्यों शुरुआत हो जाता है
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pH stands for potenz in German
when the pH of our mouth comes below 5.5, it becomes acidic and tooth decay starts. Lowering in pH gives sufficient conditions to acid to react with Ca present in tooth. Ca decompose and at last the tooth decays.
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