What causes cavities?
Cavities are caused by certain bacteria in the mouth that use sugar as an energy source. The bacteria consume the sugar and produce an acid which dissolves the tooth structure. Very tiny cavities can be arrested or stopped with proper oral hygiene, reduced sugar intake, and the use of fluoride. The fluoride helps to rebuild the weakened enamel while proper oral hygiene and reduced sugar intake helps to keep the cavity-causing bacteria in check.