Answers

2015-09-21T17:05:08+05:30
The bacteria convert food(glucose) into lactic acid which affects dentin or enamel of the teeth
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2015-09-21T18:10:08+05:30
There are several kinds of bacteria present in an unhygienic teeth.
The bacteria converts the sugar in food leftover in the teeth to lactic acid.
The formation of the acid decays the enamel of the teeth.
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