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