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