Cavities start when bacteria breaks down the enamel on our teeth.  Decay can progress if the cavity is not taken care of early.  The cavity can make its way down deeper in the tooth if not treated early where it can cause sensitivity and pain which can lead to a root canal or extraction.  This can happen in a child’s tooth or an adult’s tooth.  Regular check-ups by a pediatric dentist or adult dentist are imperative for healthy teeth!