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