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