Does brushing reduse dental carries

yes,,

Brushing your teeth is a necessary part of preventing tooth decay. Adults should brush at least twice each day - in the morning and at night before bed. Children should also brush regularly, preferably in the morning and before bed, as well as between meals. Regular brushing with fluoride toothpaste helps prevent tooth decay and keeps your teeth looking nice, specially that tooth decay occurs when harmful bacteria build up on the teeth and form layers of plaque, which in turn attacks the enamel on the teeth soo when u brush u reduce the effect of the bacteria.