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