The bacteria present on unclean to convert the sugar in food into a substance X that causes to taken in the substance at which part of teeth does it affect
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The bacteria act on the sugar present in the left over food particles sticking to the teeth to form acid. The acid thus formed eats up enamel and dentine of the tooth gradually and ultimately makes a cavity in the tooth. When this cavity reaches the pulp cavity of the tooth (which contains nerves) , our teeth become painful and we get toothache
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