Memory Healthy Teeth Memory MatchVersion en ligne Dental Hygiene par Elizabeth Lowes Sugar Hole in tooth Visit every 6 months Hard outer layer of tooth Nerve Bottom part of tooth that is inside the gum Dentin Crown Second layer of your tooth Top half of tooth Cavity Do this at least twice a day Tongue Brush Can cause cavities Dentist Root Enamel Brushing this to stop bad breath Sensitive part of tooth