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