When only part of the tooth has erupted into the mouth, it can create a flap of gum tissue that easily holds food particles and debris and is a hotbed for bacteria. Pericoronitis also can occur around a wisdom tooth that has not erupted at all and is still under the gums.
Define futon: a usually cotton-filled mattress used on the floor or in a frame as a bed, couch, or chair a usually cotton-filled mattress used on the floor or in a frame as a bed, couch, or chairâ¦ See the full definition
The word futon originally referred to the Japanese traditional bed of a padded mattress, comforter, and pillow laid on the floor. But in the west, the word futon has come to mean a covered mattress with a metal or wooden frame that folds up to transform into a small couch or armchair.