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What is the reason behind tooth decay |
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Answer» ph level causes tooth decay . When we eat sugary food in excess amount then bacterias in our mouth secrete acid to break down sugar particles.If the ph value moves below 5.5 then it results into tooth decay. The reason behind the tooth decay is ph value .when we eat sugary substance the bacteria present in our mouth convert sugar into lactic acid .the acid present in our mouth lowers the ph of buccal cavity hence tooth decay starts |
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