preferred_name: Debris - soft, easily movable substances - present in mouth prior to going to bed at night
preferred_name_lc: debris - soft, easily movable substances - present in mouth prior to going to bed at night
label: Debris - soft, easily movable substances - present in mouth prior to going to bed at night
label_lc: debris - soft, easily movable substances - present in mouth prior to going to bed at night