Role of pH in tooth answer
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We all know pH as an indication for how acidic a substance is. ... It can take between a few minutes to a few hours for the pH of the mouth to neutralize. In that time, the lower pH of the mouth creates an optimal environment for bad bacteria, which eventually causes tooth decay.
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tooth ph is 5.5 .when we eat food it contains sugar the bacteria present in our mouth react done sugar to form acid such as lactic acid which decrease the ph value of themouth when ph of mouth is lower than 5.5 the tooth start decaying to privent this mouth should be clean after food
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